Waec Biology Past Questions and Answers

Question 611:

• WAEC 1999

Which of the following factors may not affect living organisms in an aquatic habitat?

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

Question 612:

• WAEC 1999

Which of the following parasites is a flatworm?

A. Plasmodium
B. Trypanosoma
C. Ascaris
D. Schistosoma

Question 613:

• WAEC 1999

During prolonged exercises, glucose in the muscle is convened to

A. Pyruvic acid
B. Lactic acid
C. Co- enzyme
D. Ethanol

Question 614:

• WAEC 1999

Which of the following is an effect of carbon monoxide on man?

A. Irritating the skin
B. Reducing oxygen carrying capacity of blood
C. Causing gene mutation
D. Destroying white blood cells.

Question 615:

• WAEC 1999

Which of the following is a renewable natural resources?

A. Air
B. Timber
C. Soil
D. Mineral