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Author Question: A persistent cough and blood-streaked sputum are symptoms of A) oral cancer. B) colon cancer. ... (Read 69 times) |
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The human body produces and destroys 15 million blood cells every second.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.