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Author Question: Birds have a layer of wax on their ________, making them water repellant. (Read 151 times) |
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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
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Women are 50% to 75% more likely than men to experience an adverse drug reaction.