Waec Biology Past Questions and Answers

Question 241:

• WAEC 1992

The changing of colour by a chameleon to that of the environment is an example of

A. Adaptive radiation
B. Protective coloration
C. Courtship display
D. Display of body colour
E. Territorial behaviour

Question 242:

• WAEC 1992

The division of labour in social insects is an example of

A. Structural adaptation
B. Physiological adaptation
C. Commensalism
D. Behavioural adaptation
E. Hormonal influence

Question 243:

• WAEC 1992

The swarming especially at the beginning of the rainy season is a courtship behaviour shown by

A. Migratory birds
B. Pigeons
C. Crickets
D. Winged termites
E. Bees

Question 244:

• WAEC 1992

Lamarck's evolution theory could be summarised by the statement that

A. Only the fittest can survive in a challenging environment
B. Species that are unable to adapt become extinct
C. New characteristics do not arise in organisms in time of need
D. The changing environment imposes structural physiological and behavioural changes in organisms
E. In a changing and unstable environment nature rejects the weak

Question 245:

• WAEC 1992

The property of clay soil that prevents it from supporting thick vegetation is its

A. Possession of chemically weathered granite rocks
B. Inability to retain much water
C. Tendency of becoming waterlogged
D. Porosity and low water retention ability
E. High capillary spaces between the soil particles