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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.
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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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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.