Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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There are 20 feet of blood vessels in each square inch of human skin.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.
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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.
Modern primate study sometimes involves high-tech methods. This golden lion tamarin is having a batt
How to solve a trigonometric problem involving two right triangles (Question 2)
Many hunger-relief programs work to provide food aid to needy nations