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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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Cyanide works by making the human body unable to use oxygen.