(a)[4]
Identify the letter in Fig. 4.1 for the structure with each function: produces sperm; places sperm into the vagina; carries urine out of the body; keeps the testes outside the body.
(b(i))[1]
Describe how sperm length changes as testis size increases.
(b(ii))[1]
Calculate the difference in length between the longest sperm and the shortest sperm.
(b(iii))[1]
State the testis size with the longest sperm.