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Author Question: The placement of events into a sequential order based upon their position in the rock record is ... (Read 30 times) |
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There are more bacteria in your mouth than there are people in the world.
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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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Your heart beats over 36 million times a year.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.