A: During evolution,pouched mammals of Austra | vedclass

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(A) During the process of continental drift,Australia separated from other landmasses. This geographical isolation prevented the migration of placenta

Vedclass · Accepted Answer

Assertion and Reason both are correct and Reason is the correct explanation of Assertion.

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(A) During the process of continental drift,Australia separated from other landmasses. This geographical isolation prevented the migration of placental mammals into Australia,thereby reducing competition for the pouched mammals (marsupials). As a result,marsupials evolved and diversified in Australia without significant competition from placental mammals. Therefore,both the Assertion and the Reason are correct,and the Reason provides the correct explanation for the Assertion.

$A$: During evolution,pouched mammals of Australia survived.
$R$: Due to lack of competition from any other mammal due to continental drift.

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$A$: During evolution,pouched mammals of Australia survived.$R$: Due to lack of competition from any other mammal due to continental drift.