Which of the following structures is homologous to the wing of a bird?
Dorsal fin of a Shark
Wing of a Moth
Hind limb of Rabbit
Flipper of Whale
Homologous Organs -
Organs which look different and perform different functions, but have similar basic structure, similar topography and embryonic origin.These are called homologous organs. Eg: forelimbs of vertebrates like the seal, bat, bird wings, dragonfly, pterodactyl, eagle, humorous bat.
Hence, the correct answer is 'Wing of a bird is homologous to flipper of the whale'