Waec Biology Past Questions and Answers

Question 751:

• WAEC 2001

Fresh milk is often kept in refrigerated vehicles, for distribution to customers in order to

A. Ensure proper share of fresh milk to all customers.
B. Ensure delivery of milk to customers in good time
C. Improve the quality of the milk
D. Ensure that the milk is presented for a longer period

Question 752:

• WAEC 2001

In medicine, bacteria have proved very useful due to the production of

A. Nitrate
B. Antibiotics
C. Cured tobacco
D. Tanned leather

Question 753:

• WAEC 2001

I. Complexion II. Height III. Blood Rh factor IV. Colour blindness
Which of the above human characteristics are discontinuous variations?

A. I and III only
B. II and III only
C. II and IV only
D. III and IV only

Question 754:

• WAEC 2001

Use the human characteristics to answer this question.
i. Complexion ii. Height iii. Blood Rh factor iv. Colour blindess
Which of the characteristics can be expressed phenotypically?

A. I and II only
B. I, II and IV only
C. I, III and IV only
D. I, II and III only

Question 755:

• WAEC 2001

Which of the following variations is applicable to a weight lifter?

A. Continuous variation
B. Discontinuous variation
C. Hereditary variation
D. Acquired variation