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Did you know?

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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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Glioma. (a) Illustration of a large glioma (colored area) within the left cerebral hemisphere in a s Glioma. (a) Illustration of a large glioma (colored area) within the left cerebral hemisphere in a s
Letters and Numbers Letters and Numbers
Saccular Hair Cells Saccular Hair Cells
Selected Antifungal Drugs Selected Antifungal Drugs
Types of active transport into and out of cells. Types of active transport into and out of cells.
The bridging ability of IgM: (a) Pictorial view of IgM bridging of red cells. (b) Macroscopic view ... The bridging ability of IgM: (a) Pictorial view of IgM bridging of red cells. (b) Macroscopic view ...
Video: Mechanics of Sound Animation

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