Which of the following structure is homologous to wing of a bat?

forelimb of whale

The correct answer is Option (2)-Forelimb of whale

Homologous organs are characterized by having the same structural organization despite having different functional properties. These organs share a common ancestral origin, demonstrating anatomical similarity.

For instance, in the forelimbs of whales and bats, the humerus, ulna and radius, carpals, metacarpals, and phalanges are present in both species. While these structures serve different functions—whale forelimbs aiding in swimming and bat forelimbs facilitating flight—the shared anatomical features suggest a common ancestry.