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Author Question: Bell Telephone Laboratories invented the ________, which replaced the vacuum tube. (Read 161 times) |
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.
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Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.
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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.