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Author Question: According to the punctuated equilibria model, A) natural selection is unimportan (Read 344 times) |
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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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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.