LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
B.Sc. DEGREE EXAMINATION – ADVANCED ZOOLOGY & BIOTECH.
THIRD SEMESTER – April 2009
AZ 3502 - ENVIRONMENTAL BIOLOGY
Date & Time: 05/05/2009 / 1:00 - 4:00 Dept. No.
PART A
( Answer All )
UF 07
Max. : 100 Marks
10 x 2 = 20
1.Distinguish autecology from synecology.
2. Define edaphic factor.
3. What is neutralism? Give an example.
4. What is food chain?
5. Define a biome with an example.
6. Distinguish epineuston from hyponeuston.
7. What is an estuary?
8. What is photochemical smog?
9. What is social forestry?
10. What is Red data book?
PART B
(Answer any FOUR)
4 x 10 = 40
11. Describe carbon cycle.
12. Explain the biological effects of pressure as an ecological factor.
13. Write a short account on intraspecific animal relationships.
14. Describe the energy flow in an ecosystem.
15. Give an account on stratification in biotic community.
16. Discuss the deep sea animal adaptations.
17. Write notes on global warming.
PART C
(Answer any TWO)
18. `Temperature is an abiotic factor of environment’ – Justify.
19. Explain in detail the attributes of animal population.
20. Write an essay on water pollution.
21. Give a detailed account on renewable and non-renewable energy resources.
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2 x 20 = 40