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Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

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Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

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Approximately 500,000 babies are born each year in the United States to teenage mothers.

Cognitive behaviour involves problem-solving ability. Cognitive behaviour involves problem-solving ability.
Evidence for big game hunting by archaic H. sapiens is suggested by the excavations at the Boxgrove Evidence for big game hunting by archaic H. sapiens is suggested by the excavations at the Boxgrove
Solving a Quartic Solving a Quartic
Solving linear system by elimination Solving linear system by elimination
Solving Energy Problem Solving Energy Problem
Problem Solving Problem Solving
Video: How to make cDNA Animation

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