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P.T.O.
MAR IVANIOS COLLEGE (AUTONOMOUS)
THIRUVANANTHAPURAM
Reg. No.: ………………… Name: ………………….
First Semester B.Sc. Degree Examination, November 2016
First Degree Programme under CBCSS
Core Course: Zoology I
AUZO141: Animal Diversity I
Common for Regular 2016 Admn. and Improvement 2015 Admn.
Time: 3 Hours Max. Marks: 80
Instruction: Draw diagrams wherever necessary.
SECTION A
Answer ALL questions in one or two sentences.
1. Differentiate between ostia and osculam.
2. What are compound eyes
3. How does a sea cucumber defend itself against predators
4. What is Red tide
5. What is Heteronereis
6. Comment on Bipinnaria larva.
7. What are trichocysts
8. Explain sexual dimorphism in prawn.
9. Comment on Adamsia.
10. What is metamerism
(10 1 10 Marks)
SECTION B
Answer any TEN questions, not exceeding a paragraph.
11. Describe Aristotle's lantern.
12. Briefly explain the parasitic adaptations of tape worm.
13. Distinguish between eucoelomata and pseudocoelomata.
14. Why is Physalia considered to be polymorphic
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15. Distinguish between radial and bilateral symmetry.
16. Sketch and label the nervous system of Penaeus.
17. Write an account on Sacculina.
18. What are flame cells? Explain their structure.
19. Why are the earthworms and round worms included in different phyla
20. Write any four identifying features of sponges.
21. Peripatus is considered as a living fossil. Why
22. Write an account on Ropalura.
23. Give the names of any two echinoderm larvae.
24. Differentiate between enterocoel and schizocoel.
25. Comment on pedicellaria.
(10 2 20 Marks)
SECTION C
Short essay type Answer any SIX questions.
26. Explain metagenesis in Obelia.
27. Briefly explain sericulture.
28. With the help of labeled diagrams, describe the cephalic appendages of Penaeus.
29. Give a brief account on five kingdom classification of Whittaker.
30. Assign Paramecium and Balanoglossus to their respective classes, giving reasons.
31. What are corals Briefly explain different types of coral reefs.
32. Which organism causes Amoebic dysentery Explain its life cycle and pathogenicity
33. Comment on Limulus. Mention its evolutionary significance.
34. Which organism causes African sleeping sicknes Explain its structure and mode of transmission
5 30 Marks)
SECTION D
Long essay type Answer any TWO questions.
35. Classify phylum Mollusca upto classes, giving salient features and one example each.
36. Explain the life history and pathogenicity of Fasciola.
37. With suitable diagrams describe the water vascular system in Echinoderms.
38. Explain the life cycle and pathogenicity of Plasmodium vivax. Mention its prophylaxis.
10 20 Marks)