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morphology

morphology

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Emily Hebel September 11, 2011 Critical Reading #1 Task 1 A negative control in your experiment shows the experimenter that your experiment actually works in the way that it should, when you neglect the experimental variable. It makes sure there is no effect when there should be no effect. A negative control also rules out any alternative explanations. A negative control addresses the concerns that there could be something else causing the reaction.
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