Question

how does analogous organs provide evidence for evolution?

Answer 1

Analogous structures are those which are different in origin but similar in function. The existence of analogous structures suggest the occurrence of convergent evolution. It may be explained in terms of the environment, acting through the agency of natural selection, favouring those variations which confer increased survival and reproductive potential on those organisms which possess them. In this case different organs with different origins start performing similar functions and differ from their ancestral trait.