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P.T.O.
MAR IVANIOS COLLEGE (AUTONOMOUS)
THIRUVANANTHAPURAM
Reg. No.: ………………… Name: ………………….
First Semester B.Sc. Degree Examination, November 2017
First Degree Programme under CBCSS
Complementary Course: Zoology I (for Botany)
AUZO131.2a: Animal Diversity I
for 2015 Admissions Only
Time: 3 Hours Max. Marks: 80
Instruction: Draw diagrams wherever necessary.
SECTION A
Answer ALL questions in one or two sentences.
1. Name the larva of Ascaris.
2. What is ospharadium
3. Write the common name of Euplectella.
4. What are choanocytes
5. What is red tide
6. What are trichocysts
7. Name the phylum where members are exclusively marine
8. What is ecdysis
9. Name a rectal ciliate protist found in frog.
10. What is a biramous appendage
(10 1 10 Marks)
SECTION B
Answer any EIGHT questions, not exceeding a paragraph.
11. What are compound eyes
12. What is contaminative transmission Give an example.
13. Briefly explain the parasitic adaptations of tape worm.
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14. Write an account on Admasia.
15. What is metamerism
16. Distinguish between eucoelomata and pseudocoelomata.
17. What is elephantiasis
18. List any four species of silk worms used for sericulture.
19. What is apiary
20. How can you distinguish an Anopheles mosquito from Culex mosquito
21. Comment on pneumatophores.
22. Why is Physalia considered to be polymorphic
2 16 Marks)
SECTION C
Short essay type Answer any SIX questions.
23. What are corals Briefly explain different types of coral reefs.
24. What are mesozoans Explain the affinities of mesozoans.
25. Classify phylum Porifera upto classes, giving salient features and one example each.
26. Write an essay on the process of vermicomposting.
27. Give a brief account on social organization in honey bees.
28. Explain metagenesis in Obelia.
29. Briefly explain pearl culture.
30. Describe different larval stages in phylum mollusca.
31. Comment on Limulus. Mention its evolutionary significance.
4 24 Marks)
SECTION D
Long essay type Answer any TWO questions.
32. With suitable diagram describe the water vascular system in Echinoderms.
33. Explain the life history and pathogenicity of Fasciola.
34. With the help of labeled diagrams, describe the appendages of a Penaeus.
35. Write an essay on insect pests of paddy and coconut. Describe the nature of damage caused by each and their control measures.
15 30 Marks)