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Did you know?

The average adult has about 21 square feet of skin.

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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

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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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For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

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Do you know how many calories are in your chips-and-soda “study snack”? Do you know how many calories are in your chips-and-soda “study snack”?
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A field study of guppy life history evolution. A field study of guppy life history evolution.
Video: Spinal Cord Injury Animation

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