Question

What are homologous organs give example.Can the wings of bat regarded as homologus?

Answer 1

Homologous Organs - Organs with similar basic structure/ origin but modified to perform different functions.
 Example: forelimbs of various vertebrates ( or any other)  Wings of a butterfly and the wings of a bat cannot be regarded as homologous organs Reason: Though they perform the similar function, they have different origin/ basic structure

Answer 2

homologous organs are one such organs which are a bit similar for some of the species. wings of birds,flipper of a dolphin. Yes, wings of bat is regarded as homologous..