(i) Draw a neat diagram of Hydra.

(ii) Label mesoglea and gastrovascular cavity

(iii) Name the group of animals it belongs to.

(iv) Name one species of this group that lives in colonies.

List in the tabular form any three differences between the Aves and Mammalia group.

Identify the plant bodies, which are commonly named as “cryptogamae”. State and explain two characteristics which are exhibited by each category of these plant bodies.

Define the terms and given one example of each

(i) Bilateral symmetry; (ii) Coelom; (iii) Triploblastic.

Write any three differences between Amphibia and Mammalia belonging to kingdom Animalia.