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Did you know?
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
Did you know?
Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.
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In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.
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The human body produces and destroys 15 million blood cells every second.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
![Simple food web of an Arctic island. NOTE: The indication of detritivores and pathogens was not part](https://biology-forums.com/gallery/47/medium_33_17_02_12_5_42_58_20001060.jpeg)
![Model of a longitudinal study in which 983 students were surveyed in 1984 and then again in 1985, 19](https://biology-forums.com/gallery/47/medium_6_31_05_15_8_20_42_219721459.jpeg)