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Author Question: Endorphins are _____. A) morphine-like substances found in the body B) receptors that are ... (Read 60 times) |
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.
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Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.