M.Sc. DEGREE EXAMINATION, NOVEMBER 2017.
Third Semester
Botany
EVOLUTION, ECOLOGY AND PHYTOGEOGRAPHY
(CBCS 2016 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Darwinism.
2. Biome.
3. Habit.
4. Ecetone.
5. Negative interaction.
6. Mutualism.
7. Population explosion.
8. EIA.
9. Endemism.
10. Savanna.
Sub. Code
525301
RW-869
2
Sp4
Part B x 5 25)
Answer all questions choosing either or
11. Elaborate on the mechanism of adaptation.
Or
Comment on Lamarckism.
12. Write a short note on food web.
Or
List out the importance of primary producers.
13. Write a brief note on Gause's principle.
Or
Comment on predation and parasitism in
population ecosystem.
14. List out the causes of urbanization.
Or
Comment on solid waste management in urban
areas.
15. Comment on the floristic regions of the world.
Or
Discuss the factors influencing the distribution of
forests.
RW-869
3
Sp4
Part C x 10 30)
Answer any three questions.
16. Discuss in detail the types and mechanism of speciation.
17. Write an essay on the role of Biotic component in the
ecosystem.
18. Elaborate on positive interactions in population ecolosy
with examples.
19. Explain in detail the solid and liquid waste disposal with
examples.
20. Discuss in detail the phytogeographical region in the
world.