Biology 102 test
thursday 3rd october 2019
instruction: answer four (4) question only.
1. follow the pathway of a sound vibration from
ation from the pinna to the inner ear pointing out the
main structure encountered on the way. illus
way. illustrate your answer with a fully labelled diagram.
(10 mark)
2.write short note on five (5) of the following:
(a). pituitary gland (b). sexual reproduction (c). factors affecting growth (d). insulin (e).
short-sightedness (f) spermatogenesis. (10 mark)
3. describe the process of pregnancy(fertilization) development of embryo and birth in
mammal. (10 mark)
4. a). with the aid of diagram describe the male reproductive system of a named mammal
"6 mark)
). distinguish between the function of sympathetic and parasympathetic nervous syste
me body. (4 mark)
certain physiological process bring about the production of sperm, this sperm is
leased during another process. give a clear explanation on the two process. (10 m