(a) Name three main parts of the human brain

(b) State the functions of the following:
(i) Cerebrum
(ii) Hypothalamus
(iii) Medulla Oblongata.

(c)(i) List three organs of a higher plant that can respond to stimulus
(ii) What is tactic movement?

(d) Explain the following terms, giving one example in each case:
(I) Phototaxis
(ii) Hydrotaxis
(iii) Chemotaxis. 
 

(a) List four adaptive features of animals that climb rain forest trees.

(b) State five important uses of water to organisms in the tropical rain forest.

(c) Describe how temperature as an ecological factor can be measured

(d)(i) Name two scientists who have contributed to the study of evolution.
(ii) List five evidences to support the occurrence of evolution.
 

(a) Explain the terms:
(i) Parasitism
(ii) Commensalism

(b) Mention:
(i) one fungal parasite of a plant and its host
(ii) one bacterial parasite of humans.

(c)(i) List four symptoms of malaria.
(II) Mention six methods of controlling malaria in West Africa 
 

(a) What is a receptor?

(b) Describe the general features common to all receptors.

(c)(i) Make a labelled diagram 8cm - 10cm long, to show the outer and middle ear only of human.
(ii) List three ways of caring for the ear.

(a) List the main constituents of mammalian blood.

(b) State two functions of each constituent.

(c) Tabulate six differences between arteries and veins.

(d) Name the main artery which transports blood to the:
(i) Lung
(ii) Kidney.