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Biology - 7B - Coggle Diagram
Biology - 7B
Sexual reproduction
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When a sperm fuses with an egg to form a zygote, which will eventually develop into a baby.
There are 23 chromosones in a sperm cell and 23 in an egg cell, so when they merge together they make a full set of 46 chromosones.
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Puberty
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Females hips widen, so they can give birth when they are older
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