(a(i))[1]
State the type of stimulus that the skin cells are responding to.
(a(ii))[4]
Describe the reflex action shown in Fig. 7.1.
(b(i))[1]
On Fig. 7.3, draw how the pupil is expected to look in bright light.
(b(ii))[1]
State the name of the structure labelled A in Fig. 7.2.
(b(iii))[1]
State the name of the tissue in the eye that detects light.