How do  frogs breathe when they are in water?

Which is the last stage of butterfly formation?

If one species of hippo is pygmy, name the other.

The green pigment contained in the leaves of plants are called:

How do cockroaches breath?

The small opening present in leaves which take in carbon dioxide is:

What is the largest living species of lizard?

Among the following, which can swim between islands?

Animals that give birth to young ones are called:

How many stages are there in the growth of a butterfly?