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Author Question: Animals that effectively use their body surface for gas exchange must (Read 24 times) |
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.
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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
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The average adult has about 21 square feet of skin.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.