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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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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).
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The horizontal fraction bar was introduced by the Arabs.
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There are 20 feet of blood vessels in each square inch of human skin.