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 buttery
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

(C) R and S have reported correctly because wings of parrot(with forelimb) and wings of butterfly(without forelimb) perform same function ie.flight but have different structure

and wings of birds(feathers) and wings of bat(muscular) also perform same function but have different structure

hope it helps...