Puberty - Physical changes body goes through changing from a child to an adult who can reproduce, Testis - Male reproductive organ where sperm cells are produced., Ovary - Female reproductive organ where egg cells are produced., Oviduct - Tube that carries egg from ovary to uterus. Where fertilisation takes place., Fertilisation - When one sperm cell joins with an egg cell., Embryo - Fertilised egg cell in the early stages of development., Foetus - Unborn baby, from about 10 weeks after fertilisation., Uterus - Also called womb, where the baby grows., Placenta - Organ which grows in the uterus when pregnant and provides growing foetus with oxygen and food, and takes away waste and carbon dioxide., Umbilical cord - Connects the foetus (at the belly button) to the placenta., Amniotic fluid - Liquid inside the amniotic sac which acts as a shock absorber for the foetus., Gestation - Length of time for which a female is pregnant (9 months or 40 weeks in humans); longer for bigger animals; shorter for smaller animals., DNA - Molecule inside the nucleus of every cell that contains the genetic code of the animal., Chromosome - DNA is twisted into double helix X-shaped structures called chromosomes., DNA fingerprinting - Finding out an individual’s DNA pattern to compare with other samples e.g. at crime scenes., DNA database - Record of DNA patterns held by police.,

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