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Did you know?
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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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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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
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On average, the stomach produces 2 L of hydrochloric acid per day.