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Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

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Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

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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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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Molecular mechanisms that convey positional information. Molecular mechanisms that convey positional information.
Head impact during sports may reduce ability to acquire new information Head impact during sports may reduce ability to acquire new information
The vehicle emissions control information (VECI) sticker is placed under the hood. The vehicle emissions control information (VECI) sticker is placed under the hood.
Use the information in the above table to establish a Born-Haber cycle to determine the ... Use the information in the above table to establish a Born-Haber cycle to determine the ...
Levels of Organization Levels of Organization
Video: Structures that affect circulation - venous return

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