LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
B.Sc. DEGREE EXAMINATION – ADV.ZOOLOGY
THIRD SEMESTER – NOVEMBER 2010
AZ 3506/AZ 3502 - ENVIRONMENTAL BIOLOGY
Date : 02-11-10
Time : 9:00 - 12:00
Dept. No.
Max. : 100 Marks
PART – A
Answer ALL the questions.
Define / Explain the following:
(10 x 2 = 20 marks)
1. Synecology
2. Poikilotherms
3. Neutralism
4. Antibiosis
5. Ecotone
6. Niche
7. Sandy adaptation
8. Pelagic adaptation
9. Edaphic factor
10. Social forest
PART – B
Answer any FOUR questions.
(4 x 10 = 40 marks)
11. What is bio-geochemical cycle? Illustrate with nitrogen cycle.
12. Describe the mutualism and commensalisms with examples
13. Write short note on inter-tidal and desert adaptation
14. Give a brief account on sandy shore and rocky shore adaptations
15. Explain National park with 2 examples.
16. Briefly explain the global warming and climate change.
PART – C
Answer any TWO questions.
(2 x 20 = 40 marks)
17. Explain the light as an environment factor.
18. Explain the various characters of population
19. Describe the various types of ecological pyramids
20. Give an account of water pollution and abatement methods.
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