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March 28, 2017

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a farmer sprays insecticide on his crops and notices that the insect pest problems disappear. a year later he tries the same insecticide only to find that he did not achieve the same result. the insect population shows resistance to the insecticide. This is an example of acting on a population to change its characteristics

  • bio - ,

    I don't know, sorry, but i can say this...im a stripper

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