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Author Question: A large gas cloud in the interstellar medium that contains several type O and B stars would appear ... (Read 31 times) |
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The human body produces and destroys 15 million blood cells every second.
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The average adult has about 21 square feet of skin.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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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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Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.