Mitosis is where the cell divides its previously-copied DNA and cytoplasm to make two new, identical daughter cells.
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Explanation: See images below for explanation
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More information so I can answer please.
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It is mentioned that the student is mixing chemicals A and B and observes the time taken for the color to change. However, in the experiment, it is noticed that the student has repeated the procedure five times and each time he or she is modifying the concentration of chemical B. Thus, it is clear that the concentration of chemical B is the independent variable in the experiment. An independent variable is illustrated as the variable, which is controlled or modified in the experiment.
