Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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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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On average, the stomach produces 2 L of hydrochloric acid per day.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
Standing at the head of the table, apply oil or lotion to chest area. Spread lubricant fanning out ...
You Need to Consume Carbohydrates Daily
Daily Alertness Activity (2 of 2)
This table shows the growth of a crowd at a rally over a 3 h period.