Waec Biology Past Questions and Answers

Question 371:

• WAEC 1994

Which of the following structures does not function as support in animals?

A. Cuticle in arthropods
B. Scales in' birds
C. Cartilage in mammals
D. Body fluid in earthworms
E. Bones in vertebrates

Question 372:

• WAEC 1994

(a) List three major zones in the marine habitat stating one characteristic feature of each zone.
(b) (i) Give one example each of plants and animals in the marine habitat.
(ii) Explain how each of the plant and animal is adapted to the habitat.
(c) State three bahavioural adaptations of animals to seasonal changes in terrestrial habitat.
(d) State three characteristics each of the plant community in the tropical rain forest and savanna.

Question 373:

• WAEC 1994

(a) Describe the general arrangement of the viscera of a named mammal.
(b) Describe the process of feeding in (i) Hydra; (ii) Amoeba.

Question 374:

• WAEC 1994

(a) Describe an experiment to demonstrate the effect of auxin on growth of a plant shoot.
(b) List three uses of auxin in agriculture.
(c) Describe the mechanism of transmission of impulses through a nerve fibre.

Question 375:

• WAEC 1995

At what level of organisation is Amoeba?

A. Tissue
B. Organ
C. Cellular
D. System
E. Filament