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On average, the stomach produces 2 L of hydrochloric acid per day.
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The horizontal fraction bar was introduced by the Arabs.
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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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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.