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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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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

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Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

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The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Measles. A photograph of a child stricken with measles, showing the tell-tale sign of the skin rash. Measles. A photograph of a child stricken with measles, showing the tell-tale sign of the skin rash.
Child development varies and is hard to predict Child development varies and is hard to predict
The United States and Its Territories, 1787–1802 The United States and Its Territories, 1787–1802
Prevalence and Sex Distribution of Top 10 Autoimmune Diseases Diagnosed in the United States Prevalence and Sex Distribution of Top 10 Autoimmune Diseases Diagnosed in the United States
Income Inequality in the United States: 1947–2009 Income Inequality in the United States: 1947–2009
Video: Plant Defense Mechanisms from Pathogens

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