WAEC Past Questions and Answers - Page 4165

20,821.

Which of the following limiting resources is competed for by organisms in the desert?

A.

Light

B.

Temperature

C.

Oxygen

D.

water

E.

Carbondioxide

Correct answer is D

No explanation has been provided for this answer.

20,822.

Which of the following is not a way to conserve natural resources?

A.

controlling farming practices

B.

Establishing forest reserves

C.

Establishing parks and gardens

D.

Encouraging poaching in game reserves

E.

protecting endangered species

Correct answer is D

No explanation has been provided for this answer.

20,823.

Agglutination occurs in blood transfusion when the

A.

donor and the recipient belong to the same blood group

B.

same antibodies from donor and recipient fuse together

C.

donor and the recipient belong to different race

D.

recipient is not a universal recipient

E.

antigens and antibodies in the donor and the recipient react

Correct answer is E

No explanation has been provided for this answer.

20,824.

The practice of warming soup regularly as a means to preserve food is essentially to

A.

retain the taste

B.

help break down cellulose

C.

remove excess water

D.

kill the bacteria in it

E.

raise the temperature

Correct answer is D

No explanation has been provided for this answer.

20,825.

I.Plasmodium II. Vibro Cholerae III. Gonococcus sp IV. Poliomyelitis virus V. Syphilis bacteria
Which of the following organisms are transmitted by houseflies?

A.

I and II only

B.

II and V only

C.

III and IV only

D.

II and IV only

E.

III and V only

Correct answer is D

No explanation has been provided for this answer.