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Author Question: Human sexuality is based on: a. instincts. b. aggression. c. learning. d. ... (Read 214 times) |
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There are approximately 3 million unintended pregnancies in the United States each year.
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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.