The average adult has about 21 square feet of skin.
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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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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
Photosynthetic thylakoid membranes and numerous gas vesicles found in a cell of the cyanobacterial g
The nurse uses a noninvasive bladder ultrasound to measure the client’s bladder volume.
Relative Size of the Body’s Fluid Compartments
Sodium’s chief role is regulation of fluid balance