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Author Question: The tendency of a wave to bend as it passes from one transparent medium to another is called: A) ... (Read 96 times) |
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Medication errors are three times higher among children and infants than with adults.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.