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Author Question: In a contest, two tractors pull two identical blocks of stone the same distance over identical ... (Read 1533 times) |
Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).
Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Blood is approximately twice as thick as water because of the cells and other components found in it.