Loyola College M.Sc. Zoology April 2008 Environmental Biology Question Paper PDF Download

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

DE 42

M.Sc. DEGREE EXAMINATION – ZOOLOGY

THIRD SEMESTER – APRIL 2008

    ZO 3801 – ENVIRONMENTAL BIOLOGY

 

 

Date : 05/04/2008            Dept. No.                                      Max. : 100 Marks5

Time : 1:00 – 4:00

SECTION-A

Answer ALL                                                                                                           (10×2=20)

  1. Comment on phototaxis.
  2. What are pheromones?
  3. Define the term ecological niche.
  4. What is Red data book?
  5. Distinguish holoplankton from meroplankton.
  6. What is biological magnification?
  7. Differentiate fertility from fecundity
  8. What are ecological indicators?
  9. Comment on carbon trading.
  10. What is Cyclomorphosis?

SECTION-B

Answer any FOUR                                                                                               (4×10=40)

  1. Describe bio-fertilizers.
  2. Write notes on energy pyramids.
  3. Describe hydrologic cycle with a flow chart.
  4. Write notes on forest resources.
  5. Categorize inter-specific and intra-specific relationships.
  6. Write a short notes on Chronobiology
SECTION-C

Answer any TWO                                                                                     (2×20=40)

17.Write an essay on wildlife conservation.

  1. Discuss sericulture.
  2. Discuss the role of temperature as an ecological factor.
  3. Elaborate carbon cycle and global warming.

 

 

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