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Author Question: Social scientists estimate that there are, in reality, some six classes in the United States. a. ... (Read 58 times) |
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The human body produces and destroys 15 million blood cells every second.
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There are more sensory neurons in the tongue than in any other part of the body.
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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.