The onset of menstruation in a human female is called:

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

What is the significance of Testes being placed in Scrotal sacs?

The diagram given below shows a section of the human ovary.

(a) Name the process for the release of the part labelled 1.

(b) Write the name of the structure marked 2.