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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.
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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.
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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
The cultural and racial–ethnic diversity of today’s work force has led to the need for diversity ...
Men’s work? Women’s work? Customs in other societies can blow away stereotypes. As is common ...
Work and Gender: Women at Work in India
Hands-on class in a massage therapy program.
Hands-on class in a massage therapy program.
Frans de Waal Observing Chimpanzees