Answer;
-occurs when the body gets the proper amount of nutrients, and
-assists with normal development.
Explanation;
-Optimum nutrition involves eating the right amounts of nutrients on a proper schedule so as to achieve the best performance and the longest possible lifetime in good health, assuming that external negative factors such as accidents and infectious diseases can be avoided. Therefore, it occurs when the body gets the right amount of nutrients and assists with the normal development of the body.
I think it might be flexing. First you tense, which is the flex, then you relax.
resting pulse = heart rate when at rest
pulse after exertion= increased heart rate due to cardiovascular stimulation (running...etc..)
Explanation:
