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Author Question: Dairy farms identify cows entering the milking area by their individual neck chains. Indicate ... (Read 84 times) |
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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 longest a person has survived after a heart transplant is 24 years.
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Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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There are more nerve cells in one human brain than there are stars in the Milky Way.