Waec Biology 2003 Past Questions and Answers

Question 21:

• WAEC 2003

Ecology is best defined as the study of

A. The characteristics of an environment
B. The inter-relationship between living organisms and their environment
C. Living organisms in a particular area
D. The habitats and wildlife

Question 22:

• WAEC 2003

Which of the following values showing the total biomass of organisms in a food chain represents the secondary consumer?

A. 40,000
B. 3,000
C. 20
D. 1

Question 23:

• WAEC 2003

Which of the following environmental factors is not considered in a terrestial habitat?

A. Temperature
B. Sunlight
C. Humidity
D. Turbidity

Question 24:

• WAEC 2003

The gas produced during decomposition of matter is

A. Hydrogen sulphide
B. Carbon monoxide
C. Chlorine
D. Oxygen

Question 25:

• WAEC 2003

Fish cannot survive on land because it has

A. A body covered with scales
B. A streamlined body
C. No lungs
D. No walking appendages