Gujarati
Hindi
6.Evolution
medium

Assertion : Darwin's finches show a variety of beaks suited for eating large seeds, flying insects and cactus seeds.

Reason : Ancestral seed-eating stock of Darwin's finches radiated out from South American mainland to different geographical areas of the Galapagos Islands, where they found competitor-free new habitats.

A

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

B

If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

C

If the Assertion is correct but Reason is incorrect.

D

If both the Assertion and Reason are incorrect.

(AIIMS-2005)

Solution

Darwin finches found on Galapagos islands differ primarily in body size, feather colour, bill shape as adaptation to type of food available. It is a type of divergent evolution.

Standard 12
Biology

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