Envs 222: Environmental Biology And Ecology Question Paper

Envs 222: Environmental Biology And Ecology

Course:Bachelor Of Environmental Science

Institution: Kabarak University question papers

Exam Year:2010

INSTRUCTIONS:

ANSWER ALL QUESTIONS FROM SECTION A AND ANY TWO FROM SECTION B

SECTION A: (40MARKS)
Q1. State the distinctive features of the following ecosystems
a) Wetlands (2marks)
b) Mangroves (2marks)
c) Corals (2marks)
d) Ponds (2marks)
Q2. Describe briefly the adaptations of plants to the following terrestrial environments
a) Hot deserts (4marks)
b) Cold deserts (4marks)
Q3. Explain how the following factors affect the biotic life in aquatic environments
a) Salinity (2marks)
b) Currents (2marks)
c) Light (2marks)
d) Body shape (2marks)
Q4. Explain the ecological relationship between Mau forest and the population of flamingoes in
Lake Nakuru (8marks)
Q5. Describe environmental functions performed by aquatic ecosystems (8marks)

SECTION B: (30 MARKS)
Q6. Describe the role of biotic factors in ecosystems (15marks)
Q7. Discuss the influence of man on terrestrial ecosystems (15marks)
Q8. Discuss the reasons that necessitate the conservation of natural resources (15 marks)

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Envs 222: Environmental Biology And Ecology Question Paper

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