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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI 600 034
B.Sc.DEGREE EXAMINATION -ADVANCED ZOOLOGY AND BIOTECHNOLOGY
FOURTH SEMESTER APRIL 2018
AZ 4506- ENVIRONMENTAL BIOLOGY
Date: 08-05-2018 Dept. No. Max. 100 Marks
Time: 01:00-04:00
PART A
Answer ALL questions: (10 x 2 20 Marks)
All questions carry equal marks
01. Distinguish Autecology from Synecology.
02. What is Paedogenesis?
03. Define the term Natality.
04. What is Population density?
05. What is Ecotone and edge effect?
06. Define the term Food Web.
07. What areHoloplankton? Give an example.
08. Define: Intertidal zone.
09. What is Tsunami?
10. What is Greenhouse effect?
PART B
Answer Any FOUR questions: x10 40 Marks)
All questions carry equal marks
11. Give an account of nitrogen cycle with a flow chart.
12. Describe Social life in honey bees.
13. Write the different types of Ecological Pyramids.
14. Explain various components of an ecosystem.
15. Comment on the adaptations of deep sea animals.
16. Write notes on Sanctuaries and National parks.
PART C
Answer Any TWO questions: x20 40 Marks)
All questions carry equal marks
17. Write an account on Inter-specific relationships in animals.
18. Write an essay on temperature as an ecological factor.
19. Explain adaptations of rocky shore fauna with suitable examples.
20. Give an account on types of air pollutants and their biological effects.