Biology 1992 Waec Past Questions and Answers

Question 16 :

• WAEC 1992

The groups of sensory cells found on the upper surface of the tongue are called

A. Ampullae
B. Taste buds
C. Nerve cells
D. Somatic cells
E. Tactile cells

Question 17 :

• WAEC 1992

Which of the following is not a courtship behaviour exhibited by animals

A. Pairing
B. Display
C. Seasonal migration
D. Hibernation
E. Territorialism

Question 18 :

• WAEC 1992

Which of the following mineral salts is a trace element?

A. Zinc
B. Carbon
C. Hydrogen
D. Potassium
E. Calcium

Question 19 :

• WAEC 1992

Which of the following organisms reduces nitrates in the soil to gaseous nitrogen?

A. Euglena
B. Protozoan
C. Denitrifying bacterium
D. Parasitic mould
E. Nitrifying bacterium

Question 20 :

• WAEC 1992

What type of relation exists between a tapeworm and an infected mammal?

A. Symbiosis
B. Commensalism
C. Predation
D. Parasitism
E. Saprophytism