K.C.S.E Biology Q & A - MODEL 2014PP1QN27
The diagram below shows the gaseous exchange system of a locust.
(a) Name the structure labelled Q.
(b) State the function of the part labelled R.
(c) How is the part labelled S structurally adapted to its function?
(b) Keep the trachea open for air passage;
(c) Lacks spiral bands of chitin /to make it thin; for diffusion of gases;
Moist; to dissolve respiratory gases;
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