There are 20 feet of blood vessels in each square inch of human skin.
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Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Environmental influences on the expression of PKU within a single family
The Black Bee-eater (Merops gularis) is a species of bird in the Meropidae family.
Which is TRUE about the alternation of generations cycle that is diagramed above?