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Author Question: By 2050, about _____ percent of the world population is expected to live in poor nations. A) 12 ... (Read 246 times) |
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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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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.
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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.