Megan wants to see if mice that are fed food a or b grow at a faster rate, so she creates an experiment. she measures the mass of the mice on day 1, then divides them into two groups based on the type of food they will be given. she feeds each group the same amount of food at the same time each day. does megan have a control group in this experiment?
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Megan wants to see if mice that are fed food a or b grow at a faster rate, so she creates an experim...
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