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.

Vedclass · Answer

(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.

List-$I$	List-$II$
$(a)$ Anteater	$(i)$ Marsupial mouse
$(b)$ Mouse	$(ii)$ Spotted cuscus
$(c)$ Mole	$(iii)$ Marsupial mole
$(d)$ Lemur	$(iv)$ Numbat

$A$: 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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Can we call human evolution as adaptive radiation?

Match the following List-$I$ with List-$II$ regarding adaptive radiation in Australian marsupials:

List-$I$ List-$II$

$(a)$ Anteater $(i)$ Marsupial mouse

$(b)$ Mouse $(ii)$ Spotted cuscus

$(c)$ Mole $(iii)$ Marsupial mole

$(d)$ Lemur $(iv)$ Numbat

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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.