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Author Question: Identify the number of valence electrons for Mg. A) 8 B) 7 C) 5 D) ... (Read 54 times) |
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.