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Author Question: A major grocery store chain switches from bagging groceries in paper sacks to bagging them in ... (Read 133 times) |
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.