Yes thats correct ............
Answer:
Adaptation.
Explanation:
Adaptation may be defined as the change in the physical, chemical and physiological characteristics of the organisms according to the environment of the organisms.
The adaptation increases the chance of survival and increases the fitness of the organisms with their environment. The changes characteristics can be inherited from to the next generalization and the beneficial characteristics become more advance with time.
Thus, the answer is adaptation.
The independent variable is the type of exercise that you do to change your resting heart rate.
The dependent variable is the heart after you do said exercise.
