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| Ovary | Organ where eggs develop |
| Ovum | female gamete, an egg |
| Testis | Place that sperm are produced |
| Oviduct | Tube between ovary and uterus |
| Uterus | Muscular organ where a baby develops, the womb |
| Menstruation | The breakdown and loss of the soft lining of the uterus |
| Ovulation | Release of an egg from the ovary |
| Fertilisation | The joining together of the nucleus of male gamete and the nucleus of a female gamete |
| Placenta | The organ through which a mammalian embryo obtains its food and oxygen |
| Mammary gland | Breast; organ which produces milk for mammalian offspring |
| Sperm | Male gametes of animals |
| Cell | Basic unit of an organism |
| Inherited | Genetic information passed from generation to generation |
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Fetus |
Mammalian embryo in a fairly advanced stage of development |
| Puberty | Age at which gametes start to be produced |
| Adolescence | Time between childhood and adulthood |
| Embryo | A plant or animal as it develops from a fertilised egg |
| Adaptation | Feature that allows an organism or cell to successfully carry out its' job |
| Gestation | Time between fertilisation and birth |
| Division | Splitting of a cell into 2 or more units |
| Hormone | Chemical made in one part of the body that has an affect on another part |
