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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI 600 034
B.Sc. DEGREE EXAMINATION ADVANCED ZOOLOGY AND BIOTECHNOLOGY
THIRD SEMESTER NOVEMBER 2016
AZ 3506/AZ 3502 ENVIRONMENTAL BIOLOGY
Date: 04-11-2016 Dept. No. Max. 100 Marks
Time: 09:00-12:00
PART A
Answer ALL the questions: (10x2=20)
Define Explain
1. Autecology
2. Synecology
3. Population density
4. Mortality
5. Niche
6. Ecotone
7. Estuary
8. Pelagic adaptation
9. National parks.
10. Afforestation
PART B
Answer any FOUR of the following: (4x10=40)
11. Describe the nitrogen and carbon biogeochemical cycle.
12. Explain the natality and population growth curves.
13. Describe the ecological succession with example.
14. Explain the deep sea and desert adaptations of animals.
15. Explain the inter-tidal and rocky shore adaptation of animals.
16. Describe the non-renewable resources.
PART C
Answer any TWO of the following: (2x20=40)
17. Discus temperature as an environmental factor and its adaptation.
18. Describe the various inter-specific animal relationships with suitable example.
19. Describe the energy flow in ecosystem and explain the various types of ecological pyramids.
20. Give an account on water pollutions and methods of control.