Which organism is called as Friend of farmers? Why?

List the respiratory organs of amphibians.

Differentiate between tube feet and false feet.

What are the sub-phylum of prochordates?

Why are frogs said to be amphibians?

Which is the infective form of Ascaris?

The term "annulatians" comes from?

What is the meaning of Arthropoda?

Which is the second largest phylum?

Which unique feature is seen in Echinoderms?

What does "Acrania" refers to?

What do you know about coelom?

Give an account of phylum Arthropoda.

Enumerate the salient features of Aves.