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Environmental Ecology Question Paper

Environmental Ecology 

Course:Bachelor Of Environmental Studies

Institution: Kenyatta University question papers

Exam Year:2009



KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2008/2009
SECOND SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF
ENVIRONMENTAL SCIENCE
ENS 200:
ENVIRONMENTAL ECOLOGY
==================================================================
DATE: THURSDAY 10TH SEPTEMBER 2009 TIME: 8.00 A.M. – 10.00 A.M.

INSTRUCTIONS:
Answer Question One and any other Three.

1.
a)
Interpret using examples “competitive exclusion principle(s).
b)
Explain
the
following
i)
Ecological
niche
ii)
Law
of
Tolerance
iii)
Keystone species
iv)
Mark and release method
v)
Net
primary
productivity
(20
marks)

2.
Explain the causes of global warming and its possible effects on living organisms.











(5 marks)
3.
Discuss environmental pressures and their effects on the grassland ecosystem of the

world.








(15 marks)

4.
Discuss the implications of the destruction of the Mau forests on the immediate and
wider
environment.
(15
marks)

5.
Discuss how specialization in feeding habits has allowed species of birds to shore

limited resources.







(15 marks)
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