NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
APRIL/MAY 2019 EXAMINATION

COURSE CODE: BIO 304 (2 CREDIT UNITS)   

TIME ALLOWED: 2HOURS

COURSE TITLE: GENERAL ECOLOGY

INSTRUCTION: Answer question ONE (1) and any other THREE (3) Questions only

1a        What is Industrial pollution? (3marks)

1b        Outline and describe the causes of Industrial pollution (12marks)

1c        Explain each of the following concepts in ecology

i           Primary Succession (5marks)

ii          Climax vegetation (5marks)

2a        What is the significance of primary productivity? (6marks)

2b        Identify the functional components of a named ecosystem, and describe how they interact to form environmental system. (9marks)

3a        Identify the principal steps in the operation of an ecosystem (5marks)

3b        Describe the major steps required to address environmental problems of concern (10marks)

4a        Enumerate the significance of primary productivity in an ecosystem (3marks)

4b        List and describe any three ways for the presentation of demographic data (12 marks)

5a        List any three unavoidable and obvious problems created by rapid human population growth (6marks)

5b        List and explain any three different life processes taking place within the eco-system (9marks)