WAEC Past Questions and Answers - Page 3830

19,146.

A perfect market has all the following features except that

A.

There are many buyers and few sellers

B.

The commodities bought and sold are homogenous

C.

There is free entry and exit

D.

Buyers and sellers have perfect knowledge of the market

E.

There is only one ruling price

Correct answer is A

No explanation has been provided for this answer.

19,147.

A firm that charges different price of goods or services that have same technical qualities is called

A.

A perfect competitor

B.

A monopsony

C.

An oligopoly

D.

A discriminating monopoly

E.

A duopoly

Correct answer is D

No explanation has been provided for this answer.

19,148.

Adenine pairs with thymine because

A.

the two occur in the same nucleic acid

B.

one is a strong base and the other a weak base

C.

two purine bases easily pair up

D.

one is a purine base and the other a pyrimidine

Correct answer is D

No explanation has been provided for this answer.

19,149.

Which of the following components of Larmark’s theory of evolution is considered faulty?

A.

Individuals of the same species growing under different environmental conditions differ from each other

B.

Using certain organs result in development of those parts

C.

Unused organs degenerate

D.

Changes that result in individuals of the same species are transmitted to offspring

Correct answer is D

No explanation has been provided for this answer.

19,150.

Natural selection is a consequence of

A.

distribution of organisms

B.

adverse conditions

C.

variation in organisms

D.

inbreeding

Correct answer is B

No explanation has been provided for this answer.