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There are more sensory neurons in the tongue than in any other part of the body.
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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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Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.
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The horizontal fraction bar was introduced by the Arabs.
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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.