The onset of menstruation in a human female is called:

1. Menopause
2. Menarche
3. Ovulation
4. Oogenesis

Mention the significance of the Testes being located inside the scrotum.

Explain the function of corpus luteum when:

(a) ovum is fertilised.

(b) ovum is not fertilised.

State the difference between Micturition and Parturition.