Aresearcher wonders whether an acidic environment affects the growth of frogs. she varies the ph in five different tanks containing ten tadpoles each, and measures the length of the frogs after one year. all frog tanks are provided the same amount of food. what is the dependent variable in this experimentselect one: a. length of frogsb. number of tanksc. amount of foodd. ph of the tanks
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Aresearcher wonders whether an acidic environment affects the growth of frogs. she varies the ph in...
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