Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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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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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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The FDA recognizes 118 routes of administration.
caffeine
potassium
potassium
Health effects of Caffeine
Aquifer Depletion
Movement of Sodium and Potassium Ions During the Action Potential
