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A student wants to test the hypothesis that an acidic environment will decrease enzyme activity. In the

experiment, the student used an enzyme that breaks down hydrogen peroxide into water and bubbles of

oxygen. To test the hypothesis, the student should collect data on the number of oxygen bubbles produced

at different

(1) temperatures (3) enzyme concentrations

(2) pH levels (4) concentrations of hydrogen peroxide

Verified Answer :

lulu1991

The answer is (2) pH levels. The student wants to test the hypothesis which is under acidic environment. So the independent variable is pH level. And the dependent variable is enzyme activity.

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