Waec Biology Past Questions and Answers

Question 396:

• WAEC 1995

Which of the following statements is false?

A. Human sense of smell is easily fatigued
B. The skin can perceive the sensations of touch, pain, pressure and temperature
C. Taste buds and olfactory cells are active when wet as well as when dry
D. Sensory nerve endings receive stimuli and send to the central nervous system
E. Senses of smell and taste can be weakened by catarrh or blocked nose.

Question 397:

• WAEC 1995

The following are directly involved in transmission of sound waves to the brain except

A. Eardrum
B. Auditory meatus
C. Auditory ossicles
D. Eustachian tube
E. Cochlea

Question 398:

• WAEC 1995

The term syncarpous is used to describe a flower when the carpels are

A. Many and fused
B. Two only
C. Two and separate
D. Many and free
E. Lying at different parts of a flower

Question 399:

• WAEC 1995

Which of the following structures are characteristics of insect pollinated flowers?

A. Dull coloured flowers with no nectar
B. Very light numerous and pendulous stamen
C. Brightly coloured petals, scent nectar
D. Flowers are usually small and inconspicuous
E. Stigma are large, feathery and hang outside the flower

Question 400:

• WAEC 1995

Which of the following statements is not correct?

A. Shortage of food may be caused by pestilence, rinderpest and neglect of farming
B. Shortage of food may lead to competition, emigration, death and decline in the rate of reproduction
C. Over-crowding may lead to scarcity of food
D. Dispersal of seeds and fruits prevents overcrowding
E. Territorial defence encourages food scarcity in a habitat