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Author Question: Becky and her grandmother are typical when it comes to doctor visits each year. The ratio of Becky's ... (Read 103 times) |
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The average adult has about 21 square feet of skin.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Approximately 25% of all reported medication errors result from some kind of name confusion.
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When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).
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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.