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What does the scrotum do?
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Where does the tube grow out of?
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How do the sperm form semen?
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What does the vagina do?
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How does fertilisation happen with plants?
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What does the style do?
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What does the Filament do?
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What does the sperm duct do?
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What is ejaculation?
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What happens in 4 weeks of pregnancy?
