Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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More than 4.4billion prescriptions were dispensed within the United States in 2016.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Comparison of reactions at equilibrium and steady state
(B) Actual photo of fetus at week 9.
Total allowable and actual catch, Grand Bank Atlantic Cod 1959 -2012