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Did you know?

The average adult has about 21 square feet of skin.

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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

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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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Medication errors are more common among seriously ill patients than with those with minor conditions.

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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

This image shows an artists depiction of a 10-kilometer (six-mile) diameter astero This image shows an artists depiction of a 10-kilometer (six-mile) diameter astero
Single- and Double-Blind Procedures Single- and Double-Blind Procedures
Single-dose drug administration. Pharmacokinetic values for this drug are as follows: onset of ... Single-dose drug administration. Pharmacokinetic values for this drug are as follows: onset of ...
This image shows a normal third-trimester fetal brain This image shows a normal third-trimester fetal brain
Two examples of a single crossover between two nonsister chromatids Two examples of a single crossover between two nonsister chromatids
Video: Complement Proteins Animation

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