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Author Question: If an object has a 240 clockwise rotation as one of its symmetries, then it must also have as a symmetry (Read 2286 times) |
Approximately 500,000 babies are born each year in the United States to teenage mothers.
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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).
Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.