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Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

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There are more nerve cells in one human brain than there are stars in the Milky Way.

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According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Point Sources of Pollution Point Sources of Pollution
Label the cutbank and point bar on this image. Label the cutbank and point bar on this image.
Set-Point Theory Set-Point Theory
Calculate the distance from point R(17,5) to the line ... Round to the nearest tenth of a Calculate the distance from point R(17,5) to the line ... Round to the nearest tenth of a
Relationship Between the Atlas and the Axis. The Dens of the Axis Provides a Pivotal Point Around Wh Relationship Between the Atlas and the Axis. The Dens of the Axis Provides a Pivotal Point Around Wh
Number line (real numbers) Number line (real numbers)
Video: Renin/Angiotensin (water gain from urine & Na ion and water reabsorption)

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