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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.

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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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There are 20 feet of blood vessels in each square inch of human skin.

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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Biomagnification in a Lake Ontario food chain. Biomagnification in a Lake Ontario food chain.
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Elongation of the growing polypeptide chain during translation Elongation of the growing polypeptide chain during translation
Video: System organization - PPM system types (Somatic, Autonomic & Enteric) and Reflex arc types

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