Anatomically and structurally different,but functionally similar structures are called

The functioning of proteins and genes in various organisms is $.....P.....$ which indicates that they share a $.....Q.....$ ancestor.

Which of the following are the correct pair of homologous organs?
$I.$ Hands of man and wings of bat
$II.$ Wings of bat and wings of cockroach
$III.$ Wings of bird and wings of butterfly
$IV.$ Fins of fish and forelimbs of horse
$V.$ Forearm of human and forelimbs of horse
The correct combination is visible in option

Give differences: Divergent Evolution and Convergent Evolution.

Forelimbs of cat,lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of

Which one is not a vestigial organ?