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Author Question: The harpoon was invented by people using Lower Paleolithic technology. Indicate whether the ... (Read 23 times) |
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.