Biogeography Question Paper

Biogeography

Course:Bachelor Of Arts In Geography

Institution: Kenyatta University question papers

Exam Year:2009

KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2008/2009
INSTITUTE OF OPEN LEARNING (IOL)
EXAMINATION FOR THE DEGREE OF BACHELOR OF ARTS

AGE 304:
BIOGEOGRAPHY

DATE: Monday, 10th August, 2009

TIME: 11.00 a.m. ? 1.00 p.m.
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INSTRUCTIONS:
Answer question ONE and any other TWO of the FIVE questions.
1.
i)
Explain the concept of biogeography (2 marks)
ii)
List the different components/themes of biogeography (8 marks)
iii)
Briefly describe the characteristics of the distribution of living organisms (10 marks)
2.
a)
Discuss how the following factors contribute towards the origin and development of biogeography.
i)
Discovery and exploration
ii)
Slavery and slave trade
3.
i)
Define the concept of ecosystem (2 marks)
ii)
With an illustration, show the flow of energy in an ecosystem (8 marks)
iii)
With reference to (ii) above, explain what happens at different stages of the flow of energy (10 marks)
4.
i)
Define the concept of competition (2 marks)
ii)
Describe the causes of competition in an ecosystem (8 marks)
iii)
How do living organisms mitigate the effects of competition (10 marks)
5.
i)
Using specific examples, explain the different physiological and behavioural adaptations of living organisms in desert environments (10 marks)
ii)
What is the role of man in the distribution of organism in desert biomes (10 marks)

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