Waec Biology 1994 Past Questions and Answers

Question 16:

• WAEC 1994

Which of the following is not required for primary production to occur in plants?

A. Chlorophyl
B. Sugar
C. Water
D. Carbon dioxide
E. Solar energy

Question 17:

• WAEC 1994

Which of the following blood group(s) is/are the universal donor(s)

A. O
B. A
C. B
D. AB
E. AB and O

Question 18:

• WAEC 1994

The branch of science which deals with resemblances, origin and expression of biological variations is
called

A. Embryology
B. Ecology
C. Entomology
D. Genetics
E. Taxonomy

Question 19:

• WAEC 1994

Which of the following can cause desert encroachment?

A. Afforestation
B. Irrigation
C. Planting of trees
D. Establishment of game reserve
E. Overgrazing

Question 20:

• WAEC 1994

The morphological, physiological and behavioural characteristics which enable an organism to survive in
its environment is called

A. Heredity
B. Ecology
C. Competition
D. Adaptation
E. Variation