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Did you know?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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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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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.