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Author Question: The predecessor of the graphite pencil, especially popular during the Renaissance, is: A. ... (Read 71 times) |
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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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Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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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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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.