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Author Question: The freshwater leech is an organism that feeds off of the blood of other organisms such as frogs and ... (Read 27 times) |
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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There are 20 feet of blood vessels in each square inch of human skin.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.