(a(i))[1]
State the name of the hormone secreted by the testes.
(a(ii))[4]
Finish Fig. 5.1 by naming two more organs that also belong to two organ systems.
(b)[3]
Explain the need for meiosis in the testes.
(c)[4]
Finish Table 5.1.
(d)[3]
Draw and label a human egg cell. Make sure you include at least one labelled feature that does not occur in a sperm cell.
(e)[3]
Describe the changes that occur to a fertilised egg cell before implantation in the uterus.