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Blood is approximately twice as thick as water because of the cells and other components found in it.
If you could remove all of your skin, it would weigh up to 5 pounds.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
The FDA recognizes 118 routes of administration.
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