Biology 9 Chapter 8

1. Echinoderms have internal skeleton consisting of dermal calcarcouis ossicles.

a) True
b) False

2. The echinoderms have a water vascular system and internal gills.

a) True
b) False

3. Star fish is a true fish.

a) True
b) False

4. Spongilla is an example of fresh water sponge.

a) False
b) True

5. The body of sycon is hard but strong and remain attached to the rocks.

a) False
b) True

6. Some jelly fishes are very large in size with their tentacle reaching from 60 to 70 meters in length.

a) False
b) True

7. Corals are the coclentrates living in the limy skeletal cup.

a) True
b) False

8. Liver fluke and planaria are examples of nematodes.

a) True
b) False

9. Locomotary organs in paramecium are:
a) Flagella
b) Pseudopodia
c) Legs
d) Cilia

10. The association of algae with porifers are called:
a) Symbiosis
b) Parasitism
c) Mutualism
d) Comenselism

11. Deposites of coral reef are made up of:
a) Potassium Carbonate
b) Sodium Carbonate
c) Magnisium carbonate
d) calcium Carbonate

12. Special cavity in the body of coelentrate is:
a) Coelom
b) Coelenteron
c) Archenteron
d) Neuron

13. One of the following is triploblastic animal:
a) Jelly fish
b) Snail
c) Sycon
d) Planaria

14. One of the animal is not nematode:
a) Filaria
b) Coral reef
c) Ascaris
d) Trichinella

15. One of the animal is not parasites:
a) Plasmodium
b) Amoeba
c) Planaria
d) Entamoeba

16. Trichinella is nematode found in:
a) Man�s flesh
b) Water
c) Goat�s flesh
d) Pig�s flesh

17. Disease trichinosis is caused by:

a) Ascaris
b) Trichinella
c) Amoeba
d) Entamoeba

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