(a(i))[3]
Name the structures marked A, B and C in Fig. 2.1.
(a(ii))[2]
Describe the function of a motor neurone in a reflex arc.
(b(i))[4]
With reference to Fig. 2.1, explain why impulses are transmitted so quickly along this type of motor neurone.
(b(ii))[1]
Suggest why rapid transmission of nerve impulses is especially important in the blue whale.