There are more bacteria in your mouth than there are people in the world.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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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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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
Body plan axes in animals and plants
The segmented body plan of an annelid, as illustrated by an earthworm.
Cryptorchidism. (a) In complete cryptorchidism, the testes of a newborn have failed to descend into
Digital Planet Tomorrow's Technology and You, Complete, 10E