The ___________ move the wings when a cockroach flies.
Four students A, B, C and D reported the following set of organs to be homologous. Who is correct?
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: