SUB KINGDOM -METAZOA

SUB KINGDOM - METAZOA (II)

1. The organ of equilibrium and control of rhythmic movements of Aurelia is aided by the

a. Marginal lappets b. Tentacles c. Tentaculocyst d. Margin of the bell

2. Which of the following type is the stomadium of sea-anemone?

a. Cuticle b. Mesoglea c. Endoderm d. Ectoderm

3. A Coelenterate that shows metagenesis is

a. Obelia b. Hydra c. Sea-anemone d. Physalia

4. The reef that is cut by narrow water channels at a little distance from shore is called the

a. Fringing reef b. Barrier reef c. Atoll d. ‘a’ and ‘b’

5. Siphonoglyphs are found in

a. Obelia b. Sea anemone c. Aurelia d. Hydra

6. Aurelia is a

a. Marine medusoid Coelenterate b. Fresh water medusoid Coelenterate

c. Marine polypoid Coelenterate d. Fresh water Polypoid Coelenterate

7. Which of the following is a brilliantly coloured Colenterate

a. Obelia b. Sea anemone c. Hydra d. Physalia

8. On stimulation, the cnidoblasts reacts by

a. Contraction b. Discharging Poison c. Emitting light d. Producing electric shock

9. The function of the pneumatophore in Physalia is

a. Hydrostatic b. Nutritrive c. Balancing d. None of the above

10.Based on the feeding habit of Obelia medusa it is

a. Herbivorous b. Omnivorous c. Carnivorous d. Detritous feeder

11. Corals are

a. Marine annelids which secrete CaCO b. Fresh water Coelenterates which secrete CaCO3

c. Marine Coelenterates which secrete CaCO3 d. All the above

12. The condition when a sea-anemone is found growing on a shell of a hermit crab, is called

a. Symbiosis b. Commensalism c. Competition d. Neutralism

13. Subgenital pits below the gonads on the sub umbrella surface are found i n

a. Obelian medusa b. Coral c. Aurelia d. Sea anemone

14. The animal without a sexual medusae

a. Hydra b. Aurelia c. Obelia d. None of the above

15. ‘Sea-flower’ is the other name for

a. Obelia b. Aurelia c. Sea - anemone d. Physalia

16. Fringing reef is usuall located

a. Very near the shore b. In the deep sea c. Away from the shore d. In the island

17. Spermatogonia in Hydra, develops from

a. Interstitial cells b. Gastrodermis c. Endothelial cells d. Gland cells

18. Strobilation is characteristic of

a. Obelia b. Hydra c. Aurelia d. ‘a’ and ‘b’

19. The scientific name of precious coral

a. Tubipora b. Fungia c. Heliopora d. Corallum

20. The gonad of Obelian medusa are derived from

a. Ectoderm b. Endoderm c. Both ‘a’ and ‘b’ d. Neither ‘a’ nor ‘b’

21. Which of the following name corresponds to the skeleton of each polyp of a coral ?

a. Coenosarc b. Corallite c. Hydrocaulus d. Corallum

22. Carbondioxide leave Hydra during respiration by

a. Simple diffusion b. Osmosis c. Evaporation d. Transportation

23. The Christmas island is

a. The largest barrier reef in Australia b. An Atoll found in Central Pacific

c. A coral island in Indian Ocean d. None of the above

24. Heaps of lime secreted by colonial corals is

a. Coral island b. Coral reef c. Corallite d. None of the above

25. Osculam in Sponge

a. Is a principal opening which objects the water drawn into the body

b. Are small apertures which draws in water

c. Is a plate like flap which covers the apertures

d Is a type of spicule

ANSWERS

1. b 2. c 3. d 4. b 5. d 6. b 7. c 8. c 9. a 10. c

11. c 12. b 13.b 14. a 15. b 16. d 17. c 18. c 19. a 20. a

21. c 22. a 23. c 24. a 25. a 26.b 27. a 28. c 29. c 30. d

31. b 32. b 33. c 34. d 35. b 36. a 37. a 38. a 39. c 40. c

41. b 42. c 43. c 44. d 45. a 46. c 47. a 48. d 49. c 50. d