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Zool 210: Ecology Question Paper

Zool 210: Ecology

Course:Bachelor Of Education (Science) & Bachelor Of Science

Institution: Chuka University question papers

Exam Year:2013

CHUKA

UNIVERSITY

UNIVERSITY EXAMINATIONS
SECOND YEAR EXAMINATIONS FOR THE AWARD OF
BACHELOR OF EDUCATION (SCIENCE) & BACHELOR OF SCIENCE
ZOOL 210: ECOLOGY
STREAMS: BED (SCI) BSC Y2S2 TIME: 2 HOURS
DAY/DATE: TUESDAY 23/4/2013 2.30 PM – 4.30 PM
INSTRUCTIONS:

• Answer ALL Questions in Section A and any TWO Questions from Section B.
• Illustrate your Answers with diagrams where appropriate.

SECTION A (30 MARKS)

1. Write explanatory notes on the following:

(i) Ecological succession [2 Marks]

(ii) Competition [2 Marks]

(iii) Species diversity [2 Marks]

2. Describe and illustrate the flow of energy and matter in an ecosystem. [6 Marks]

3. Distinguish between the following terms:

(i) Parasitism and predation
(ii) Primary production and secondary production
(iii) Territory and home-range
(iv) Neutralism and commensalism [4 Marks]
4. Explain in details how Lincoln’s index (1930) is used to estimate the population size of a mobile animal. [6 Marks]

5. Give a brief account of renewable and non-renewable energy resources in Kenya. [8 Marks]
SECTION B (40 MARKS)

6. Discuss the factors that influence the distribution and abundance of organisms.
[20 Marks]

7. Is climate change a myth or reality? Discuss this statement in light of current changes experienced in whather patterns. [20 Marks]

8. Write an essay on the causes and possible remedies of air pollution. [20 Marks]

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Zool 210: Ecology Question Paper

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