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Chronic Obstructive Pulmonary Disease (COPD) makes it difficult for the respiratory system to deliver oxygen to the lungs. The scientist wants to use a computer simulation to model how COPD affects heart rate and respiratory rate during exercise. She will compare the results of the simulation to the results she gathered in her previous study. Which of the following would be an appropriate dependent variable for the new study?

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wiseowl2018

Answer:

In the new study, dependent variables are heart rate and respiratory rate during exercise.

Explanation:

  • Dependent variable in a study is a variable whose value is dependent on the independent variables of the study.
  • Here in the computer simulation, the change in oxygen transport to he lung will change the  heart rate and respiratory rate during exercise.
  • Hence the dependent variable will be heart rate and respiratory rate.

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