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Author Question: In a group of 8 friends, many have dated other members of the group. Phoebe has dated Eric, Scott, ... (Read 2329 times) |
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.
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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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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.