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Author Question: Ejaculation, unlike erection, begins in the spinal column. Indicate whether the statement is true ... (Read 17 times) |
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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
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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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There are more nerve cells in one human brain than there are stars in the Milky Way.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.