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Author Question: According to the authors, Kurt Lewin once wrote, There is nothing so practical as a good theory. By ... (Read 46 times) |
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.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.