National Open University Exam Past Question ESM 426 October/November 2013

                                                               

                                                                      National Open University of Nigeria

                                                            14-16 Ahmadu Bello Way, Victoria Island Lagos 

                                                                    School of science and Technology

                                                                 October/November 2013 Examination 

Corse Code: ESM 426

Course Title: BIOGEOGRAPHY

TIME: 2HRS

ANSWER ANY FOUR QUESTIONS 

1. Discuss the major differences between forest and grassland ecosystem                 17.5marks

2. Examine two factors of fragility                                                             17.5marks

3. Identify the component of the ecosystem and discuss their main characteristics     17.5marks 

4.  Explain the various stages and factors involved in ecological succession    17.5marks

5. The paucity of life and low productivity in the desert are due to several factors discuss     17.5marks

6. Identify and explain those ecological characteristics shared by both   17.5marks


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