What is the similarity between fly, mosquito and cockroach

What is the similarity between housefly , mosquito and cockroach ?

What is the similarity between Hydra and Yeast ?

What is the similarity between buna-N and PHBV ?

What is the similarity between buna-N and PHBV?

What is common between mosquito and cockroach ?

What is the similarity between gymnosperms and angiosperms

What is the similarity between electrostatic and magnetic forces?

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?

Comment of the similarity between the wing of a cockroach and the wing oi a bird. What do you infer from the above, with reference to evolution?

Comment of the similarity between the wing of a cockroach and the wing oi a bird. What do you infer from the above, with reference to evolution?