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Author Question: A researcher recruits a sample of 25 preschool children for a research study by posting an ... (Read 151 times) |
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Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.
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The human body produces and destroys 15 million blood cells every second.
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Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.