Biology, 25.06.2019 22:30 crossoverking07

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 experiment? a. ph of the tanks b. number of tanks c. amount of food d. length of frogs

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