Question

Write the similarity between the wing of a butterfly and the wing of a bat. What do you infer from the above with reference to evolution? [Delhi 2012; HOTS]
Or
Comment on the similarity between the wing of a cockroach and the wing of a bird. What do you infer from the above with reference to evolution? [AI 2012; HOTS]
Or
Comment on the similarity between the flippers of dolphins and penguins, with reference to evolution. [Foreign 2012]

Answer 1

1)wing of a butterfly and wing of a bird have same function but Different structure hence they are called as analogous organs

analogous organs show convergent evolution

2)same as 1 St one

3)

flippers of dolphins and penguins have same structure but Different function

homologous

divergent evolution

I hope this helps ( ╹▽╹ )