Human reproduction; anatomy, cells, hormones, pregnancy.

1. Human Reproduction

2. adolescence BOYS GIRLS Testes start to produce sperm Ovaries start to release eggs Testes start to produce androgens(testosterone) Ovaries start to produce estrogen and progesterone Hair grows on the face, chest and armpits Menstruation starts Voice deepens Breast get larger Behaviour changes Behaviour changes Pubic hair grows Pubic hair grows

4. Male anatomy

6. Female anatomy

8. Basic lifecycle of sexually reproducing organisms

9. Meiosis

10. Hormones

11. Levels of hormones The changing levels of the female sex hormones control the different stages of the menstrual cycle

12. Having a baby

13. Fertilisation

14. Fertilisation

15. Pregnancy