Across

5. Inherited.
7. Female sex cell, egg.
9. Where the foetus is kept safely inside the mother's body.
10. Organ where sperm are made.
12. The process of forming eggs.
13. When the lining of the uterus is discarded by the body.

Down

1. Male sex cell.
2. Eggs travel through this from ovary to uterus.
3. When a female cell becomes joined with a male cell.
4. 7,5 Organ that provides a baby with milk.
6. The time when sex organs begin to work.
7. Organ where eggs are made.
8. How long the foetus stays in the uterus.
11. The developing human baby after the embryonic state.