Question

question 6: which variable is the independent variable in this experiment? (the \independent variable\ is the variable you are changing or manipulating to see how it affects the dependent variable.) (1 point)
heart rate
breathing rate
exercise or no exercise
number of volunteers
question 7: which variable is the dependent variable in this experiment? (the \dependent variable\ is the variable that you are measuring.) (1 point)
exercise time
resting heart rate
heart rate and breathing rate measurements
type of exercise

Explanation:

In an experiment, the independent variable is manipulated by the researcher. Here, "Exercise or no exercise" can be controlled to see its impact. The dependent variable is what is measured as a result of changes in the independent variable. Heart rate and breathing rate are likely to change based on whether exercise occurs or not, so "Heart rate and breathing rate measurements" are the dependent variables.

Answer:

Question 6: C. Exercise or no exercise
Question 7: C. Heart rate and breathing rate measurements