<?xml version='1.0' encoding='iso-8859-1'?>
<!-- Produced by EDGARsuite software, Advanced Computer Innovations, Inc., Copyright (C) 2008-2011. www.edgarsuite.com -->
<link:linkbase xmlns="http://www.xbrl.org/2003/linkbase"
		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
		xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"
		xmlns:fil="http://www.entb.net/20111130"
		xmlns:link="http://www.xbrl.org/2003/linkbase"
		xmlns:xlink="http://www.w3.org/1999/xlink"
		xmlns:xbrldt="http://xbrl.org/2005/xbrldt"
		xmlns:xbrli="http://www.xbrl.org/2003/instance">
	<link:roleRef roleURI="http://www.entb.net/20111130/role/idr_DocumentDocumentAndEntityInformation" xlink:type="simple" xlink:href="entb-20111130.xsd#idr_DocumentDocumentAndEntityInformation"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://www.entb.net/20111130/role/idr_DocumentDocumentAndEntityInformation">
		<link:loc xlink:type='locator' xlink:href='entb-20111130.xsd#fil_DocumentAndEntityInformationAbstract' xlink:label='fil_DocumentAndEntityInformationAbstract'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityRegistrantName' xlink:label='dei_EntityRegistrantName'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_DocumentAndEntityInformationAbstract' xlink:to='dei_EntityRegistrantName' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_DocumentType' xlink:label='dei_DocumentType'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_DocumentAndEntityInformationAbstract' xlink:to='dei_DocumentType' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_DocumentPeriodEndDate' xlink:label='dei_DocumentPeriodEndDate'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_DocumentAndEntityInformationAbstract' xlink:to='dei_DocumentPeriodEndDate' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_AmendmentFlag' xlink:label='dei_AmendmentFlag'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_DocumentAndEntityInformationAbstract' xlink:to='dei_AmendmentFlag' use='optional' order='4.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityCentralIndexKey' xlink:label='dei_EntityCentralIndexKey'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_DocumentAndEntityInformationAbstract' xlink:to='dei_EntityCentralIndexKey' use='optional' order='5.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_CurrentFiscalYearEndDate' xlink:label='dei_CurrentFiscalYearEndDate'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_DocumentAndEntityInformationAbstract' xlink:to='dei_CurrentFiscalYearEndDate' use='optional' order='6.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityCommonStockSharesOutstanding' xlink:label='dei_EntityCommonStockSharesOutstanding'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_DocumentAndEntityInformationAbstract' xlink:to='dei_EntityCommonStockSharesOutstanding' use='optional' order='7.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityFilerCategory' xlink:label='dei_EntityFilerCategory'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_DocumentAndEntityInformationAbstract' xlink:to='dei_EntityFilerCategory' use='optional' order='8.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityCurrentReportingStatus' xlink:label='dei_EntityCurrentReportingStatus'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_DocumentAndEntityInformationAbstract' xlink:to='dei_EntityCurrentReportingStatus' use='optional' order='9.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityVoluntaryFilers' xlink:label='dei_EntityVoluntaryFilers'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_DocumentAndEntityInformationAbstract' xlink:to='dei_EntityVoluntaryFilers' use='optional' order='10.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityWellKnownSeasonedIssuer' xlink:label='dei_EntityWellKnownSeasonedIssuer'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_DocumentAndEntityInformationAbstract' xlink:to='dei_EntityWellKnownSeasonedIssuer' use='optional' order='11.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_DocumentFiscalYearFocus' xlink:label='dei_DocumentFiscalYearFocus'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_DocumentAndEntityInformationAbstract' xlink:to='dei_DocumentFiscalYearFocus' use='optional' order='12.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_DocumentFiscalPeriodFocus' xlink:label='dei_DocumentFiscalPeriodFocus'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_DocumentAndEntityInformationAbstract' xlink:to='dei_DocumentFiscalPeriodFocus' use='optional' order='13.0'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://www.entb.net/20111130/role/idr_ConsolidatedBalanceSheetUnaudited" xlink:type="simple" xlink:href="entb-20111130.xsd#idr_ConsolidatedBalanceSheetUnaudited"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://www.entb.net/20111130/role/idr_ConsolidatedBalanceSheetUnaudited">
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract' xlink:label='us-gaap_StatementOfFinancialPositionAbstract'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementTable' xlink:label='us-gaap_StatementTable'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementOfFinancialPositionAbstract' xlink:to='us-gaap_StatementTable' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementLineItems' xlink:label='us-gaap_StatementLineItems'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementTable' xlink:to='us-gaap_StatementLineItems' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsAbstract' xlink:label='us-gaap_AssetsAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_AssetsAbstract' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsCurrentAbstract' xlink:label='us-gaap_AssetsCurrentAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsAbstract' xlink:to='us-gaap_AssetsCurrentAbstract' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Cash' xlink:label='us-gaap_Cash'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsCurrentAbstract' xlink:to='us-gaap_Cash' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountsReceivableNetCurrent' xlink:label='us-gaap_AccountsReceivableNetCurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsCurrentAbstract' xlink:to='us-gaap_AccountsReceivableNetCurrent' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InventoryNet' xlink:label='us-gaap_InventoryNet'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsCurrentAbstract' xlink:to='us-gaap_InventoryNet' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DueFromAffiliateCurrent' xlink:label='us-gaap_DueFromAffiliateCurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsCurrentAbstract' xlink:to='us-gaap_DueFromAffiliateCurrent' use='optional' order='4.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PrepaidExpenseCurrent' xlink:label='us-gaap_PrepaidExpenseCurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsCurrentAbstract' xlink:to='us-gaap_PrepaidExpenseCurrent' use='optional' order='5.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DueFromEmployeesCurrent' xlink:label='us-gaap_DueFromEmployeesCurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsCurrentAbstract' xlink:to='us-gaap_DueFromEmployeesCurrent' use='optional' order='6.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsCurrent' xlink:label='us-gaap_AssetsCurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsCurrentAbstract' xlink:to='us-gaap_AssetsCurrent' use='optional' order='7.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet' xlink:label='us-gaap_PropertyPlantAndEquipmentNet'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsAbstract' xlink:to='us-gaap_PropertyPlantAndEquipmentNet' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Goodwill' xlink:label='us-gaap_Goodwill'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsAbstract' xlink:to='us-gaap_Goodwill' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet' xlink:label='us-gaap_FiniteLivedIntangibleAssetsNet'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsAbstract' xlink:to='us-gaap_FiniteLivedIntangibleAssetsNet' use='optional' order='4.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill' xlink:label='us-gaap_IntangibleAssetsNetExcludingGoodwill'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsAbstract' xlink:to='us-gaap_IntangibleAssetsNetExcludingGoodwill' use='optional' order='5.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsNoncurrentAbstract' xlink:label='us-gaap_AssetsNoncurrentAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsAbstract' xlink:to='us-gaap_AssetsNoncurrentAbstract' use='optional' order='6.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PrepaidExpenseNoncurrent' xlink:label='us-gaap_PrepaidExpenseNoncurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsNoncurrentAbstract' xlink:to='us-gaap_PrepaidExpenseNoncurrent' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsNoncurrent' xlink:label='us-gaap_AssetsNoncurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsNoncurrentAbstract' xlink:to='us-gaap_AssetsNoncurrent' use='optional' order='2.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Assets' xlink:label='us-gaap_Assets'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AssetsNoncurrentAbstract' xlink:to='us-gaap_Assets' use='optional' order='3.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract' xlink:label='us-gaap_LiabilitiesAndStockholdersEquityAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_LiabilitiesAndStockholdersEquityAbstract' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract' xlink:label='us-gaap_LiabilitiesCurrentAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_LiabilitiesAndStockholdersEquityAbstract' xlink:to='us-gaap_LiabilitiesCurrentAbstract' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountsPayableCurrent' xlink:label='us-gaap_AccountsPayableCurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_LiabilitiesCurrentAbstract' xlink:to='us-gaap_AccountsPayableCurrent' use='optional' order='1.0' preferredLabel='http://www.xbrl.org/2003/role/terseLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NotesPayableCurrent' xlink:label='us-gaap_NotesPayableCurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_LiabilitiesCurrentAbstract' xlink:to='us-gaap_NotesPayableCurrent' use='optional' order='2.0' preferredLabel='http://www.xbrl.org/2003/role/terseLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ConvertibleNotesPayableCurrent' xlink:label='us-gaap_ConvertibleNotesPayableCurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_LiabilitiesCurrentAbstract' xlink:to='us-gaap_ConvertibleNotesPayableCurrent' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DueToAffiliateCurrent' xlink:label='us-gaap_DueToAffiliateCurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_LiabilitiesCurrentAbstract' xlink:to='us-gaap_DueToAffiliateCurrent' use='optional' order='4.0' preferredLabel='http://www.xbrl.org/2003/role/terseLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent' xlink:label='us-gaap_AccruedLiabilitiesCurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_LiabilitiesCurrentAbstract' xlink:to='us-gaap_AccruedLiabilitiesCurrent' use='optional' order='5.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesCurrent' xlink:label='us-gaap_LiabilitiesCurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_LiabilitiesCurrentAbstract' xlink:to='us-gaap_LiabilitiesCurrent' use='optional' order='6.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesNoncurrentAbstract' xlink:label='us-gaap_LiabilitiesNoncurrentAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_LiabilitiesAndStockholdersEquityAbstract' xlink:to='us-gaap_LiabilitiesNoncurrentAbstract' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermNotesPayable' xlink:label='us-gaap_LongTermNotesPayable'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_LiabilitiesAndStockholdersEquityAbstract' xlink:to='us-gaap_LongTermNotesPayable' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesNoncurrent' xlink:label='us-gaap_LiabilitiesNoncurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_LiabilitiesAndStockholdersEquityAbstract' xlink:to='us-gaap_LiabilitiesNoncurrent' use='optional' order='4.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Liabilities' xlink:label='us-gaap_Liabilities'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_LiabilitiesAndStockholdersEquityAbstract' xlink:to='us-gaap_Liabilities' use='optional' order='5.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquityAbstract' xlink:label='us-gaap_StockholdersEquityAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_StockholdersEquityAbstract' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockValue' xlink:label='us-gaap_CommonStockValue'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StockholdersEquityAbstract' xlink:to='us-gaap_CommonStockValue' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockValue' xlink:label='us-gaap_PreferredStockValue'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StockholdersEquityAbstract' xlink:to='us-gaap_PreferredStockValue' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockAdditionalSeriesValue' xlink:label='us-gaap_PreferredStockAdditionalSeriesValue'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StockholdersEquityAbstract' xlink:to='us-gaap_PreferredStockAdditionalSeriesValue' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdditionalPaidInCapital' xlink:label='us-gaap_AdditionalPaidInCapital'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StockholdersEquityAbstract' xlink:to='us-gaap_AdditionalPaidInCapital' use='optional' order='4.0'/>
		<link:loc xlink:type='locator' xlink:href='entb-20111130.xsd#fil_ContributedCapital' xlink:label='fil_ContributedCapital'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StockholdersEquityAbstract' xlink:to='fil_ContributedCapital' use='optional' order='5.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit' xlink:label='us-gaap_RetainedEarningsAccumulatedDeficit'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StockholdersEquityAbstract' xlink:to='us-gaap_RetainedEarningsAccumulatedDeficit' use='optional' order='6.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquity' xlink:label='us-gaap_StockholdersEquity'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StockholdersEquityAbstract' xlink:to='us-gaap_StockholdersEquity' use='optional' order='7.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity' xlink:label='us-gaap_LiabilitiesAndStockholdersEquity'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StockholdersEquityAbstract' xlink:to='us-gaap_LiabilitiesAndStockholdersEquity' use='optional' order='8.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://www.entb.net/20111130/role/idr_ConsolidatedBalanceSheetUnauditedParenthetical" xlink:type="simple" xlink:href="entb-20111130.xsd#idr_ConsolidatedBalanceSheetUnauditedParenthetical"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://www.entb.net/20111130/role/idr_ConsolidatedBalanceSheetUnauditedParenthetical">
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_BalanceSheetRelatedDisclosuresAbstract' xlink:label='us-gaap_BalanceSheetRelatedDisclosuresAbstract'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementTable' xlink:label='us-gaap_StatementTable'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_BalanceSheetRelatedDisclosuresAbstract' xlink:to='us-gaap_StatementTable' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementLineItems' xlink:label='us-gaap_StatementLineItems'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementTable' xlink:to='us-gaap_StatementLineItems' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare' xlink:label='us-gaap_CommonStockParOrStatedValuePerShare'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_CommonStockParOrStatedValuePerShare' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockSharesAuthorized' xlink:label='us-gaap_CommonStockSharesAuthorized'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_CommonStockSharesAuthorized' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockSharesIssued' xlink:label='us-gaap_CommonStockSharesIssued'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_CommonStockSharesIssued' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockSharesOutstanding' xlink:label='us-gaap_CommonStockSharesOutstanding'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_CommonStockSharesOutstanding' use='optional' order='4.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare' xlink:label='us-gaap_PreferredStockParOrStatedValuePerShare'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_PreferredStockParOrStatedValuePerShare' use='optional' order='5.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockSharesAuthorized' xlink:label='us-gaap_PreferredStockSharesAuthorized'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_PreferredStockSharesAuthorized' use='optional' order='6.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockAdditionalSeriesParOrStatedValuePerShare' xlink:label='us-gaap_PreferredStockAdditionalSeriesParOrStatedValuePerShare'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_PreferredStockAdditionalSeriesParOrStatedValuePerShare' use='optional' order='7.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockAdditionalSeriesSharesAuthorized' xlink:label='us-gaap_PreferredStockAdditionalSeriesSharesAuthorized'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_PreferredStockAdditionalSeriesSharesAuthorized' use='optional' order='8.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockAdditionalSeriesSharesIssued' xlink:label='us-gaap_PreferredStockAdditionalSeriesSharesIssued'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_PreferredStockAdditionalSeriesSharesIssued' use='optional' order='9.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockAdditionalSeriesSharesOutstanding' xlink:label='us-gaap_PreferredStockAdditionalSeriesSharesOutstanding'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_PreferredStockAdditionalSeriesSharesOutstanding' use='optional' order='10.0'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://www.entb.net/20111130/role/idr_ConsolidatedStatementOfOperationsUnaudited" xlink:type="simple" xlink:href="entb-20111130.xsd#idr_ConsolidatedStatementOfOperationsUnaudited"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://www.entb.net/20111130/role/idr_ConsolidatedStatementOfOperationsUnaudited">
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeStatementAbstract' xlink:label='us-gaap_IncomeStatementAbstract'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementTable' xlink:label='us-gaap_StatementTable'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_IncomeStatementAbstract' xlink:to='us-gaap_StatementTable' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementLineItems' xlink:label='us-gaap_StatementLineItems'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementTable' xlink:to='us-gaap_StatementLineItems' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RevenuesAbstract' xlink:label='us-gaap_RevenuesAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_RevenuesAbstract' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SalesRevenueServicesNet' xlink:label='us-gaap_SalesRevenueServicesNet'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_RevenuesAbstract' xlink:to='us-gaap_SalesRevenueServicesNet' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherSalesRevenueNet' xlink:label='us-gaap_OtherSalesRevenueNet'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_RevenuesAbstract' xlink:to='us-gaap_OtherSalesRevenueNet' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Revenues' xlink:label='us-gaap_Revenues'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_RevenuesAbstract' xlink:to='us-gaap_Revenues' use='optional' order='3.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CostOfRevenue' xlink:label='us-gaap_CostOfRevenue'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_RevenuesAbstract' xlink:to='us-gaap_CostOfRevenue' use='optional' order='4.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GrossProfit' xlink:label='us-gaap_GrossProfit'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_RevenuesAbstract' xlink:to='us-gaap_GrossProfit' use='optional' order='5.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CostsAndExpensesAbstract' xlink:label='us-gaap_CostsAndExpensesAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_CostsAndExpensesAbstract' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense' xlink:label='us-gaap_ResearchAndDevelopmentExpense'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_CostsAndExpensesAbstract' xlink:to='us-gaap_ResearchAndDevelopmentExpense' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LeaseAndRentalExpense' xlink:label='us-gaap_LeaseAndRentalExpense'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_CostsAndExpensesAbstract' xlink:to='us-gaap_LeaseAndRentalExpense' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense' xlink:label='us-gaap_GeneralAndAdministrativeExpense'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_CostsAndExpensesAbstract' xlink:to='us-gaap_GeneralAndAdministrativeExpense' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherGeneralAndAdministrativeExpense' xlink:label='us-gaap_OtherGeneralAndAdministrativeExpense'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_CostsAndExpensesAbstract' xlink:to='us-gaap_OtherGeneralAndAdministrativeExpense' use='optional' order='4.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProfessionalAndContractServicesExpense' xlink:label='us-gaap_ProfessionalAndContractServicesExpense'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_CostsAndExpensesAbstract' xlink:to='us-gaap_ProfessionalAndContractServicesExpense' use='optional' order='5.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherExpenses' xlink:label='us-gaap_OtherExpenses'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_CostsAndExpensesAbstract' xlink:to='us-gaap_OtherExpenses' use='optional' order='6.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CostsAndExpenses' xlink:label='us-gaap_CostsAndExpenses'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_CostsAndExpensesAbstract' xlink:to='us-gaap_CostsAndExpenses' use='optional' order='7.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingIncomeLoss' xlink:label='us-gaap_OperatingIncomeLoss'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_OperatingIncomeLoss' use='optional' order='3.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherIncomeAndExpensesAbstract' xlink:label='us-gaap_OtherIncomeAndExpensesAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_OtherIncomeAndExpensesAbstract' use='optional' order='4.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherIncome' xlink:label='us-gaap_OtherIncome'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_OtherIncomeAndExpensesAbstract' xlink:to='us-gaap_OtherIncome' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpenseDebtExcludingAmortization' xlink:label='us-gaap_InterestExpenseDebtExcludingAmortization'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_OtherIncomeAndExpensesAbstract' xlink:to='us-gaap_InterestExpenseDebtExcludingAmortization' use='optional' order='2.0' preferredLabel='http://www.xbrl.org/2003/role/terseLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AmortizationOfDebtDiscountPremium' xlink:label='us-gaap_AmortizationOfDebtDiscountPremium'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_OtherIncomeAndExpensesAbstract' xlink:to='us-gaap_AmortizationOfDebtDiscountPremium' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense' xlink:label='us-gaap_OtherNonoperatingIncomeExpense'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_OtherIncomeAndExpensesAbstract' xlink:to='us-gaap_OtherNonoperatingIncomeExpense' use='optional' order='4.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic' xlink:label='us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic' use='optional' order='5.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit' xlink:label='us-gaap_IncomeTaxExpenseBenefit'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic' xlink:to='us-gaap_IncomeTaxExpenseBenefit' use='optional' order='1.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLoss' xlink:label='us-gaap_NetIncomeLoss'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_NetIncomeLoss' use='optional' order='6.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted' xlink:label='us-gaap_EarningsPerShareBasicAndDiluted'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_EarningsPerShareBasicAndDiluted' use='optional' order='7.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='entb-20111130.xsd#fil_WEIGHTEDAVERAGENUMBEROFCOMMONSHARESOUTSTANDING' xlink:label='fil_WEIGHTEDAVERAGENUMBEROFCOMMONSHARESOUTSTANDING'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='fil_WEIGHTEDAVERAGENUMBEROFCOMMONSHARESOUTSTANDING' use='optional' order='8.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://www.entb.net/20111130/role/idr_ConsolidatedStatementOfCashFlowsUnaudited" xlink:type="simple" xlink:href="entb-20111130.xsd#idr_ConsolidatedStatementOfCashFlowsUnaudited"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://www.entb.net/20111130/role/idr_ConsolidatedStatementOfCashFlowsUnaudited">
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract' xlink:label='us-gaap_StatementOfCashFlowsAbstract'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementTable' xlink:label='us-gaap_StatementTable'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementOfCashFlowsAbstract' xlink:to='us-gaap_StatementTable' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementLineItems' xlink:label='us-gaap_StatementLineItems'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementTable' xlink:to='us-gaap_StatementLineItems' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract' xlink:label='us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLoss' xlink:label='us-gaap_NetIncomeLoss'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract' xlink:to='us-gaap_NetIncomeLoss' use='optional' order='1.0' preferredLabel='http://www.xbrl.org/2003/role/verboseLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract' xlink:label='us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EmployeeBenefitsAndShareBasedCompensation' xlink:label='us-gaap_EmployeeBenefitsAndShareBasedCompensation'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract' xlink:to='us-gaap_EmployeeBenefitsAndShareBasedCompensation' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionCashFlowEffects' xlink:label='us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionCashFlowEffects'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract' xlink:to='us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionCashFlowEffects' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract' xlink:label='us-gaap_IncreaseDecreaseInOperatingCapitalAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_IncreaseDecreaseInOperatingCapitalAbstract' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable' xlink:label='us-gaap_IncreaseDecreaseInAccountsReceivable'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_IncreaseDecreaseInOperatingCapitalAbstract' xlink:to='us-gaap_IncreaseDecreaseInAccountsReceivable' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInInventories' xlink:label='us-gaap_IncreaseDecreaseInInventories'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_IncreaseDecreaseInOperatingCapitalAbstract' xlink:to='us-gaap_IncreaseDecreaseInInventories' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInDueFromEmployeeCurrent' xlink:label='us-gaap_IncreaseDecreaseInDueFromEmployeeCurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_IncreaseDecreaseInOperatingCapitalAbstract' xlink:to='us-gaap_IncreaseDecreaseInDueFromEmployeeCurrent' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable' xlink:label='us-gaap_IncreaseDecreaseInAccountsPayable'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_IncreaseDecreaseInOperatingCapitalAbstract' xlink:to='us-gaap_IncreaseDecreaseInAccountsPayable' use='optional' order='4.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidExpense' xlink:label='us-gaap_IncreaseDecreaseInPrepaidExpense'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_IncreaseDecreaseInOperatingCapitalAbstract' xlink:to='us-gaap_IncreaseDecreaseInPrepaidExpense' use='optional' order='5.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseDueFromAffiliates' xlink:label='us-gaap_IncreaseDecreaseDueFromAffiliates'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_IncreaseDecreaseInOperatingCapitalAbstract' xlink:to='us-gaap_IncreaseDecreaseDueFromAffiliates' use='optional' order='6.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInDeposits' xlink:label='us-gaap_IncreaseDecreaseInDeposits'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_IncreaseDecreaseInOperatingCapitalAbstract' xlink:to='us-gaap_IncreaseDecreaseInDeposits' use='optional' order='7.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities' xlink:label='us-gaap_IncreaseDecreaseInAccruedLiabilities'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_IncreaseDecreaseInOperatingCapitalAbstract' xlink:to='us-gaap_IncreaseDecreaseInAccruedLiabilities' use='optional' order='8.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities' xlink:label='us-gaap_NetCashProvidedByUsedInOperatingActivities'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_IncreaseDecreaseInOperatingCapitalAbstract' xlink:to='us-gaap_NetCashProvidedByUsedInOperatingActivities' use='optional' order='9.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract' xlink:label='us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract' use='optional' order='4.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease' xlink:label='us-gaap_PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract' xlink:to='us-gaap_PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease' use='optional' order='1.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract' xlink:label='us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract' use='optional' order='5.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GoodwillPeriodIncreaseDecrease' xlink:label='us-gaap_GoodwillPeriodIncreaseDecrease'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract' xlink:to='us-gaap_GoodwillPeriodIncreaseDecrease' use='optional' order='1.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentAmount1' xlink:label='us-gaap_DebtConversionConvertedInstrumentAmount1'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract' xlink:to='us-gaap_DebtConversionConvertedInstrumentAmount1' use='optional' order='2.0'/>
		<link:loc xlink:type='locator' xlink:href='entb-20111130.xsd#fil_IncreaseDecreaseInCommonStockIssuedForCash' xlink:label='fil_IncreaseDecreaseInCommonStockIssuedForCash'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract' xlink:to='fil_IncreaseDecreaseInCommonStockIssuedForCash' use='optional' order='3.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInIntangibleAssetsCurrent' xlink:label='us-gaap_IncreaseDecreaseInIntangibleAssetsCurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract' xlink:to='us-gaap_IncreaseDecreaseInIntangibleAssetsCurrent' use='optional' order='4.0'/>
		<link:loc xlink:type='locator' xlink:href='entb-20111130.xsd#fil_IncreaseDecreaseInCommonStockIssuedForExpenses' xlink:label='fil_IncreaseDecreaseInCommonStockIssuedForExpenses'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract' xlink:to='fil_IncreaseDecreaseInCommonStockIssuedForExpenses' use='optional' order='5.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInDueToAffiliates' xlink:label='us-gaap_IncreaseDecreaseInDueToAffiliates'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract' xlink:to='us-gaap_IncreaseDecreaseInDueToAffiliates' use='optional' order='6.0'/>
		<link:loc xlink:type='locator' xlink:href='entb-20111130.xsd#fil_IncreaseDecreaseInDueToShareholder' xlink:label='fil_IncreaseDecreaseInDueToShareholder'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract' xlink:to='fil_IncreaseDecreaseInDueToShareholder' use='optional' order='7.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInNotesPayableCurrent' xlink:label='us-gaap_IncreaseDecreaseInNotesPayableCurrent'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract' xlink:to='us-gaap_IncreaseDecreaseInNotesPayableCurrent' use='optional' order='8.0'/>
		<link:loc xlink:type='locator' xlink:href='entb-20111130.xsd#fil_IncreaseDecreaseInContributedCapital' xlink:label='fil_IncreaseDecreaseInContributedCapital'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract' xlink:to='fil_IncreaseDecreaseInContributedCapital' use='optional' order='9.0'/>
		<link:loc xlink:type='locator' xlink:href='entb-20111130.xsd#fil_IncreaseDecreaseInAdditionalPaidInCapital' xlink:label='fil_IncreaseDecreaseInAdditionalPaidInCapital'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract' xlink:to='fil_IncreaseDecreaseInAdditionalPaidInCapital' use='optional' order='10.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities' xlink:label='us-gaap_NetCashProvidedByUsedInFinancingActivities'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract' xlink:to='us-gaap_NetCashProvidedByUsedInFinancingActivities' use='optional' order='11.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashPeriodIncreaseDecrease' xlink:label='us-gaap_CashPeriodIncreaseDecrease'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_CashPeriodIncreaseDecrease' use='optional' order='6.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue' xlink:label='us-gaap_CashAndCashEquivalentsAtCarryingValue'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_CashAndCashEquivalentsAtCarryingValue' use='optional' order='7.0' preferredLabel='http://www.xbrl.org/2003/role/periodStartLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue' xlink:label='us-gaap_CashAndCashEquivalentsAtCarryingValue_1'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_CashAndCashEquivalentsAtCarryingValue_1' use='optional' order='8.0' preferredLabel='http://www.xbrl.org/2003/role/periodEndLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract' xlink:label='us-gaap_SupplementalCashFlowInformationAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_SupplementalCashFlowInformationAbstract' use='optional' order='9.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestPaid' xlink:label='us-gaap_InterestPaid'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_SupplementalCashFlowInformationAbstract' xlink:to='us-gaap_InterestPaid' use='optional' order='1.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxesPaid' xlink:label='us-gaap_IncomeTaxesPaid'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_SupplementalCashFlowInformationAbstract' xlink:to='us-gaap_IncomeTaxesPaid' use='optional' order='2.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract' xlink:label='us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract' use='optional' order='10.0'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssued1' xlink:label='us-gaap_StockIssued1'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_StatementLineItems' xlink:to='us-gaap_StockIssued1' use='optional' order='11.0' preferredLabel='http://www.xbrl.org/2003/role/totalLabel'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://www.entb.net/20111130/role/idr_DisclosureBasisOfPresentation" xlink:type="simple" xlink:href="entb-20111130.xsd#idr_DisclosureBasisOfPresentation"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://www.entb.net/20111130/role/idr_DisclosureBasisOfPresentation">
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract' xlink:label='us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_BasisOfAccounting' xlink:label='us-gaap_BasisOfAccounting'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract' xlink:to='us-gaap_BasisOfAccounting' use='optional' order='1.0'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://www.entb.net/20111130/role/idr_DisclosureOrganizationAndDescriptionOfBusiness" xlink:type="simple" xlink:href="entb-20111130.xsd#idr_DisclosureOrganizationAndDescriptionOfBusiness"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://www.entb.net/20111130/role/idr_DisclosureOrganizationAndDescriptionOfBusiness">
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountingPoliciesAbstract' xlink:label='us-gaap_AccountingPoliciesAbstract'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock' xlink:label='us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AccountingPoliciesAbstract' xlink:to='us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock' use='optional' order='1.0'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://www.entb.net/20111130/role/idr_DisclosureSummaryOfSignificantAccountingPolicies" xlink:type="simple" xlink:href="entb-20111130.xsd#idr_DisclosureSummaryOfSignificantAccountingPolicies"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://www.entb.net/20111130/role/idr_DisclosureSummaryOfSignificantAccountingPolicies">
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountingPoliciesAbstract' xlink:label='us-gaap_AccountingPoliciesAbstract'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock' xlink:label='us-gaap_SignificantAccountingPoliciesTextBlock'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_AccountingPoliciesAbstract' xlink:to='us-gaap_SignificantAccountingPoliciesTextBlock' use='optional' order='1.0'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://www.entb.net/20111130/role/idr_DisclosureRelatedPartyTransactions" xlink:type="simple" xlink:href="entb-20111130.xsd#idr_DisclosureRelatedPartyTransactions"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://www.entb.net/20111130/role/idr_DisclosureRelatedPartyTransactions">
		<link:loc xlink:type='locator' xlink:href='entb-20111130.xsd#fil_RelatedPartyDisclosuresAbstract' xlink:label='fil_RelatedPartyDisclosuresAbstract'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock' xlink:label='us-gaap_RelatedPartyTransactionsDisclosureTextBlock'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_RelatedPartyDisclosuresAbstract' xlink:to='us-gaap_RelatedPartyTransactionsDisclosureTextBlock' use='optional' order='1.0'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://www.entb.net/20111130/role/idr_DisclosureIncomeTaxes" xlink:type="simple" xlink:href="entb-20111130.xsd#idr_DisclosureIncomeTaxes"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://www.entb.net/20111130/role/idr_DisclosureIncomeTaxes">
		<link:loc xlink:type='locator' xlink:href='entb-20111130.xsd#fil_IncomeTaxesAbstract' xlink:label='fil_IncomeTaxesAbstract'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock' xlink:label='us-gaap_IncomeTaxDisclosureTextBlock'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_IncomeTaxesAbstract' xlink:to='us-gaap_IncomeTaxDisclosureTextBlock' use='optional' order='1.0'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://www.entb.net/20111130/role/idr_DisclosureCommitmentAndContingencies" xlink:type="simple" xlink:href="entb-20111130.xsd#idr_DisclosureCommitmentAndContingencies"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://www.entb.net/20111130/role/idr_DisclosureCommitmentAndContingencies">
		<link:loc xlink:type='locator' xlink:href='entb-20111130.xsd#fil_CommitmentAndContingenciesAbstract' xlink:label='fil_CommitmentAndContingenciesAbstract'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock' xlink:label='us-gaap_CommitmentsAndContingenciesDisclosureTextBlock'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_CommitmentAndContingenciesAbstract' xlink:to='us-gaap_CommitmentsAndContingenciesDisclosureTextBlock' use='optional' order='1.0'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://www.entb.net/20111130/role/idr_DisclosureConvertibleNotes" xlink:type="simple" xlink:href="entb-20111130.xsd#idr_DisclosureConvertibleNotes"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://www.entb.net/20111130/role/idr_DisclosureConvertibleNotes">
		<link:loc xlink:type='locator' xlink:href='entb-20111130.xsd#fil_DerivativeInstrumentsAndHedgingActivitiesAbstract' xlink:label='fil_DerivativeInstrumentsAndHedgingActivitiesAbstract'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DerivativesAndFairValueTextBlock' xlink:label='us-gaap_DerivativesAndFairValueTextBlock'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='fil_DerivativeInstrumentsAndHedgingActivitiesAbstract' xlink:to='us-gaap_DerivativesAndFairValueTextBlock' use='optional' order='1.0'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://www.entb.net/20111130/role/idr_DisclosureStockholdersEquity" xlink:type="simple" xlink:href="entb-20111130.xsd#idr_DisclosureStockholdersEquity"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://www.entb.net/20111130/role/idr_DisclosureStockholdersEquity">
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EquityAbstract' xlink:label='us-gaap_EquityAbstract'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock' xlink:label='us-gaap_StockholdersEquityNoteDisclosureTextBlock'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_EquityAbstract' xlink:to='us-gaap_StockholdersEquityNoteDisclosureTextBlock' use='optional' order='1.0'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://www.entb.net/20111130/role/idr_DisclosureStockTransactions" xlink:type="simple" xlink:href="entb-20111130.xsd#idr_DisclosureStockTransactions"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://www.entb.net/20111130/role/idr_DisclosureStockTransactions">
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EquityAbstract' xlink:label='us-gaap_EquityAbstract'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock' xlink:label='us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_EquityAbstract' xlink:to='us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock' use='optional' order='1.0'/>
	</link:presentationLink>
	<link:roleRef roleURI="http://www.entb.net/20111130/role/idr_DisclosureSubsequentEvents" xlink:type="simple" xlink:href="entb-20111130.xsd#idr_DisclosureSubsequentEvents"/>
	<link:presentationLink xlink:type="extended" xlink:role="http://www.entb.net/20111130/role/idr_DisclosureSubsequentEvents">
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SubsequentEventsAbstract' xlink:label='us-gaap_SubsequentEventsAbstract'/>
		<link:loc xlink:type='locator' xlink:href='http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SubsequentEventsTextBlock' xlink:label='us-gaap_SubsequentEventsTextBlock'/>
		<link:presentationArc xlink:type='arc' xlink:arcrole='http://www.xbrl.org/2003/arcrole/parent-child' xlink:from='us-gaap_SubsequentEventsAbstract' xlink:to='us-gaap_SubsequentEventsTextBlock' use='optional' order='1.0'/>
	</link:presentationLink>
</link:linkbase>

