Waec Biology Past Questions and Answers

Question 756:

• WAEC 2001

The character that expresses itself in the presence of the contrasting characters

A. Hybrid
B. Allele
C. Recessive
D. Dominant

Question 757:

• WAEC 2001

Which of the following animals exhibits territoriality?

A. Bees
B. Bats
C. Lizards
D. Rabbit

Question 758:

• WAEC 2001

(i) Draw and label the human sperm cell.
(ii) State where the sperm cell is produced and where it is stored.
(b) Explain how the structure of the sperm cell enables it to function
(c) Mention four advantages of sexual reproduction.

Question 759:

• WAEC 2001

(a)(i) Draw and label.the mammalian heart.
(ii) Explain briefly pulmonary circulation in mammals.
(b) State five processes by which the mammalian body reduces its temperature.

Question 760:

• WAEC 2001

(a) State eight human activities that may pollute water bodies
(b) Explain the measures that may be used to prevent pollution of water bodies.
(c) Mention four methods of purifying water.