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Author Question: Perceptual shortcuts can sometimes be accurate and valuable. (Read 223 times) |
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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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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.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.
This portrait of Thomas Jefferson is considered an accurate likeness, painted when he was thirty-sev
This depiction breaks stereotypes, but is historically accurate. Shown here is an Iroquois fort. Can ...