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Did you know?

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.

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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

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Approximately 500,000 babies are born each year in the United States to teenage mothers.

lower digestive lower digestive
Female Reproductive System Female Reproductive System
Endocrine system mind map Endocrine system mind map
Functional divisions of the peripheral nervous system Functional divisions of the peripheral nervous system
Properties of the Magnocellular, Parvocellular, and Koniocellular Divisions of the Visual System Properties of the Magnocellular, Parvocellular, and Koniocellular Divisions of the Visual System
Conduction system of the heart Conduction system of the heart
Video: Glomerular filtrate rate: pressures that affect GFR, NFP & GFR and blood composition

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