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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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People about to have surgery must tell their health care providers about all supplements they take.