Biology 2001 Waec Past Questions and Answers

Question 21 :

• WAEC 2001

Which of the following pairs of structures does not perform similar functions?

A. Lungs and spiracles
B. Root hair and mammalian hair
C. Feathers and scales
D. Contractile vacuole and kidney

Question 22 :

• WAEC 2001

The effect of the contraction of the muscles of the diaphram is that

A. He volume of the thoracic cavity increases.
B. More carbon dioxide is expelled through the nostrils
C. The rib cage is drawn inwards
D. The intercostal muscle becomes relaxed

Question 23 :

• WAEC 2001

Which of the following is an excretory product of Amoeba?

A. Urea
B. Ammonia
C. Uric acid
D. Amino acid

Question 24 :

• WAEC 2001

Which of the following processes occurs when the body temperature of a mammal rises above the normal?
I The arterioles in the skin dilate. II Sweat production is reduced. III The erector muscles contract.

A. I only
B. II only
C. I and III only
D. II and III only

Question 25 :

• WAEC 2001

The following functions are associated with the liver except

A. Regulation of blood sugar
B. Production of heat
C. Production of fibrinogen
D. Production of vitamin