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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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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).

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Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

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Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

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Blood is approximately twice as thick as water because of the cells and other components found in it.

In 1979 Islamic militants held American embassy workers hostage in Tehran. In 1979 Islamic militants held American embassy workers hostage in Tehran.
Draw and label a diagram and explain how a factor-dependent transcription (rho-dependent) terminator Draw and label a diagram and explain how a factor-dependent transcription (rho-dependent) terminator
Mechanism of the biotin-dependent pyruvate carboxylase reaction Phase II Mechanism of the biotin-dependent pyruvate carboxylase reaction Phase II
"The Department of Agriculture came out today with its prediction for food price "The Department of Agriculture came out today with its prediction for food price
Satellite data on primary productivity in the equatorial Pacific Ocean Satellite data on primary productivity in the equatorial Pacific Ocean
Video: Monohybrid crosses

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