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Ses213:Basic Ecology And Biodiversity Question Paper

Ses213:Basic Ecology And Biodiversity

Course:Basic Ecology And Biodiversity

Institution: University Of Eldoret question papers

Exam Year:2011

Answer all questions in section A and any four in section B
section A(30marks)
1.Define the following terms
i)Species evenness
ii)Ecotone
iii)Environment (3marks)
2.List the three levels under which biodiversity is considered(3marks)
3.Explain the significance of keystone species in an ecosystem (3marks)
4.Explain the three patterns of population dispersal(3marks)
5.List the three types of biodiversity (3marks)
6.State any three anthropogenic threats to biodiversity (3marks)
7.State the three types of symbiotic relationships that occur in an ecological community(3marks)
8.Explain how Niche theory is crucial to ecological theory ?(3marks)
9.Give the three examples of Grassland Biomes(3marks)
10.Explain the concept of ecological carrying capacity (3marks)
section B(40marks)
11.a)Explain the term species diversity (2marks)
b)Account for the high species diversity in tropical rainforests (8marks)
12.a)What is competition?(1mark)
b)With clear illustrations,discuss intraspecific and interspecific competitions shown by organisms in ecological communities(9marks)
13.Discuss the factors that would limit the populations of zebras in Nairobi National park(10marks)
14.Discuss the importance of biodiversity to man(10marks)
15.a)What is an ecosystem?(1mark)
b)Discuss Ecosystem services (9marks)

Ses213:Basic Ecology And Biodiversity Question Paper

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