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Did you know?
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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There are more sensory neurons in the tongue than in any other part of the body.
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There are 60,000 miles of blood vessels in every adult human.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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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.