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25 June, 11:53

Sarah wanted to find out if temperature has an effect on the growth of bread mold. She grew the mold in nine Petri dishes containing the same amount and type of nutrients. Three were kept at 0 C, three were kept at 90 C, and three were kept at room temperature, 27 C. The containers were examined and the growth of the bread mold was recorded each Friday for five weeks. The dependent or responding variable is:

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  1. 25 June, 12:10
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    Growth of Bread Mold

    Explanation:

    The controlled variables are the type of containers used and also the different temperatures.
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