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Author Question: Describe the evolution of amphibians in the Paleozoic. What will be an ideal ... (Read 29 times) |
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A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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Everyone has one nostril that is larger than the other.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Women are 50% to 75% more likely than men to experience an adverse drug reaction.