Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
Three of the color variants found at Fossil Rim Wildlife Center in Texas
Eastern gray squirrel drey
A gray squirrel, seven months of age near Mobile, Alabama
Economics question
economic question
Which color is placed at the center of the circle?