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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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On average, the stomach produces 2 L of hydrochloric acid per day.
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There are approximately 3 million unintended pregnancies in the United States each year.
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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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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.