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Author Question: A sterol is a steroid-based compound that has one or more carboxyl (COOH) groups attached to it. ... (Read 136 times) |
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
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The human body produces and destroys 15 million blood cells every second.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.