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Author Question: Which of the following can be classified as a physical activity? A) Walking up the stairs B) ... (Read 13 times) |
Did you know?
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.