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Assertion : All primates have a common ancestry. Reason : The most primate was shrew like animals.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are ture but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false |
Answer» Correct Answer - B All perimates have a common ancestry (monophytic origin). Primitive evolution began 80-100 million year ago. The evolutionary history of eutherian mammals dates back to early cretaceous period. The earliest eutherians were shrew-like terrestrial insectivores. they were small, ground dwelling mammals. |
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