Biology Class 11 Chapter 10 - Kingdom Animalia - Part 11

Biology Class 11 Chapter 10 - Kingdom Animalia - Part 11

1. External buds in sponges are called as gemmules.

a) True
b) False

2. Mesoglea is a jelly like substance and is present inner to endoderm.

a) True
b) False

3. Polyps are nutritive in function, hence named as gastrozooids.

a) False
b) True

4. Exoskeleton of corals is made up of silica.

a) True
b) False

5. Blastostyle gives rise to individual zooids called polypeps.

a) True
b) False

6. In hydra, alternation of generation is absent.

a) False
b) True

7. Platyhelminthes are also called as flat worms because they are dorso-ventrally compressed.

a) True
b) False

8. Parasitic forms of plathyhelminthes are motile.

a) True
b) False

9. Alimentary canal of round worms has only one opening.

a) False
b) True

10. Ascaris lumbericoides is an intestinal parasite of man. a) False
b) True

11. The body of Annelida is metamerically segmented.

a) False
b) True

12. In Annelids, mouth is overhung by a lobed structure, the prestomium.

a) True
b) False

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