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Author Question: Sienna is constantly nagging her brother to quit smoking as she is concerned for his health. This ... (Read 8763 times) |
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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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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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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.