Question

Four students P, Q, R and S differently reported the following set of organs to be analogous :

P. Forelimb of a frog and forelimb of a lizard

Q. Forelimb of a bird and forelimb of a human

R. Wings of a parrot and wings of a butterfly

S. Wings of a bird and wings of a bat

The two students who have reported correctly are :

(A) P and Q

(B) Q and R

(C) R and S

(D) P and S

Answer 1

Organs that are different in origin but similar in function are known as analogous organs.

Examples of analogous organs are:-

(i) Wings of a parrot and wings of a butterfly

(ii) Wings of a bird and wings of a bat

Thus, the two students who have reported correctly are R and S.

Hence, the correct option is C.