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Author Question: A first-grade student spelled the word said as sed. This showed that the student was trying to spell ... (Read 427 times) |
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
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There are 20 feet of blood vessels in each square inch of human skin.
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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.
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Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.