JAMB Biology Past Questions (2007)

Q1. The reason for the law of demand can best be explained in terms of

A. supply

B. complementary

C. the rationing function of prices

D. diminishing marginal utility

Answer: D

Q2. A producer sustains a loss in the short run if?

A. marginal revenue is less than price

B. price is less than average cost

C. marginal cost is less than marginal revenue

D. average variable cost is less than average cost

Answer: B

Q3. Which of the following is not correct with regards to the solar system?

A. The planets all orbit round the sun

B. The sun is only a source of the energy needed on the planets

C. The earth as well as other planets rotate round the sun

D. all the planets have definite orbits around the sun

Answer: C