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https://elearn.nouedu2.net/login/
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COURSE CODE: BIO 304
COURSE TITLE: GENERAL ECOLOGY
CREDIT: 2 units
TIME ALLOWED: 2 Hours
INTRUCTION: Answer question ONE (1) and any other THREE (3) questions
1. (a) Enumerate the harmful effects of decreasing the earth’s ozone layer. (2 marks)
(b) Outline some special adaptations desert plants and animals have developed. (5 marks)
(c) Compare and contrast the tropical rain forest and the savanna in terms of rainfall, animal types, vegetation and burning by fire (8 marks)
(d) Give a detailed description the following attributes of population:
(i) Population size (5 marks)
(ii) Population growth (5 marks)
2. (ai) Define global warming. (2 marks)
(ii) Give a detailed description of how global warming is affected by industrialization? (6marks)
3. (ai)What do you understand by the term ecological succession? (2 marks)
(ii) Humans are considered to be initiators of secondary succession. Discuss. (8 marks)
(b) Photosynthetic plants are of gross importance in the ecosystem. Discuss. (5 marks)
4. (a) As an Ecologist, give five reasons for sustaining the earth’s biodiversity. (6 marks)
(b) Identify the three world’s major environmental problems (3 marks) and suggest how they could be tackled (7 marks).
5. (a) List the primary reservoirs for the chemicals in the biogeochemical cycles. (2 marks)
(b) With the help of a well labeled illustration, describe the carbon cycle. (13 marks)
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You can now use you matric number to login as your username and password in a lowercase.
https://elearn.nouedu2.net/login/
Note that you are to change your passw...
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