All cells in the body have the same DNA and the same genes. In organs & tissues the expression changes.
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Why does the amount or dose entering the body matter? ... A point would be reached where beneficial effects would disappear and harmful effects would start to be noticed. ... harmful is directly related to the amount of it taken into the body at one time. ... Chemicals with high toxicity only need small doses to cause poisoning.
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Cohabitation generally refers to people who, regardless of gender, live together without being validly married to each other. In the past, these relationships were called extramarital cohabitation. Sex and the law deals with the regulation by law of human sexual activity. Sex laws vary from one place or jurisdiction to another, and have varied over time, and unlawful sexual acts are also called sex crimes.
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Primary, Secondary, Tertiary, Quaternary <span />
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water pollutant the loose sand, clay, silt, and other soil particles that are carried from a site by runoff water that eventually settles at the bottom of streams
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