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Author Question: A weightless astronaut in an orbiting space vehicle is A) shielded from Earth's gravitational ... (Read 61 times) |
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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.
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There are more bacteria in your mouth than there are people in the world.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
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Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.