M.Sc. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2017.
Third Semester
Zoology
Paper I — COMPARATIVE ANATOMY OF INVERTEBRATES AND VERTEBRATES

2 20831 A
Time 3 Hours Max. Marks 60
PART — A
Answer any FIVE questions. 4 20 Marks)
1. Haemolymph
2. Renal portal system
3. Axon
4. Larval gills
5. Green glands
6. Tracheols
7. Primitive nerve net
8. Malpighian body.
PART — B
Answer ALL questions. 10 40 Marks)
9. Give an account on respiratory organs in vertebrates.
Or
Describe the structural organisation of gills in arthropoda.
10. Give a detailed account on circulatory system in mollusca.
Or
Write an account on venous system in vertebrates.

11. Describe the evolution of kidney in vertebrates.
Or
Give a comparative account on the structural organization of flame cells.
12. Describe the advanced nervous system in arthropoda.
Or
Give a comparative anatomy of brain in vertebrate series.
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