Biology : PU-CET (U.G) 2017 Panjab University Entrance Exam With Answers

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30.

Which of the following are pairs of analogous organs?

I. Forelimbs of horse-Wings of bat
II. Wings of bat-Wings of butterfly
III. Forelimbs of horse-Wings of butterfly
IV. Wings of bird-Wings of bat

A: I and II

B: II and IV

C: III And IV

D: II And III

The answer is: B

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Explanation

Correct option is B)

Bird and bat wings are analogous - that is, they have separate evolutionary origins, but are superficially similar because they have both experienced natural selection that shaped them to play a key role in flight.

Analogies are theBird and bat wings are analogous - that is, they have separate evolutionary origins, but are superficially similar because they have both experienced natural selection that shaped them to play a key role in flight. Analogies are the result of convergent evolution. result of convergent evolution.

So, the correct answer is 'II and IV'.