Final answer:
The dependent variable in the scenario where exercise increases energy utilization is the amount of energy utilized. This variable depends on the exercise level, which is the independent variable. If energy expenditure exceeds intake, the body metabolizes fat to compensate, leading to fat loss.
Step-by-step explanation:
The question asks which variable is the dependent variable in the context of a scenario where more energy utilization is tied to increased exercise. In this case, the dependent variable is the amount of energy utilized. This is because the energy utilized is dependent on the level of exercise, making exercise the independent variable. When a person exercises more, if they happen to use more energy than they consume, the body compensates for the energy deficit by metabolizing body fats. Thus, if a person uses 13,000 kJ but only consumes 12,000 kJ, they will experience fat loss as the body metabolizes stored fats to make up the 1,000 kJ difference.