Waec Biology 1991 Past Questions and Answers

Question 21:

• WAEC 1991

The human skin is regarded as a sense organ because it

A. Separates the body from the outside world
B. Protects the body from cold and heat
C. Regulates the water content of the body
D. Has an outer layer of dead cells
E. Has nerve endings

Question 22:

• WAEC 1991

The part of the brain responsible for the control the controls of voluntary movement and interpretation of sensation is the

A. Cerebrum
B. Cerebellum
C. Optic lobe
D. Medulla oblongata
E. Olfactory lobe

Question 23:

• WAEC 1991

Which part of the ear is responsible for the maintenance of balance?

A. Ossicles
B. Tympanic membrane
C. Eustachian tube
D. Semicircular canals
E. Cochlea

Question 24:

• WAEC 1991

Which of the following is not part of the female reproductive system?

A. Ovary
B. Seminal vessicles
C. Uterus
D. Vagina
E. Fallopian tube

Question 25:

• WAEC 1991

Which of the following substance from the mother's blood diffuse through the placenta into the blood vessels of the feotus?

A. Carbon dioxide and oxygen
B. Glycogen and starch
C. Urea and carbon dioxide
D. Glucose and oxygen
E. Digested food and carbon dioxide