Waec Biology 2000 Past Questions and Answers

Question 21:

• WAEC 2000

Which of the following solutions will induce the condition shown in the diagram?

A. Hypertonic solution
B. Hypotonic solution
C. Isotonic solution
D. Distilled water.

Question 22:

• WAEC 2000

Which of the following conditions will cause a decrease in body temperature?

A. Increased metabolism
B. Shivering
C. Vasoconstriction of capillaries of the skin
D. Relaxation of the erector muscles

Question 23:

• WAEC 2000

The organs constantly in touch with the liver are

A. Pancreas, colon and caecum
B. Duodenum and stomach
C. Illeum, stomach and colon
D. Stomach and gall bladder

Question 24:

• WAEC 2000

Which of the following is responsible for the increased heart beat of a boy who saw a python? increased
production of

A. Adrenalin
B. Insulin
C. Pituitrin
D. Thyroxin

Question 25:

• WAEC 2000

The nerves that arise from the brain are known as

A. Spinal nerves
B. Sacral nerves
C. Cranial nerves
D. Optic nerves