The answer is False everyone has to get health evaluations because everyone needs to be checked for any health risk.
The upper chambers are called the left and right atria, and the lower chambers are called the left and right ventricles. A wall of muscle called the septum separates the left and right atria and the left and right ventricles.
This is a little confusing, but if you're asking which of the scenarios is correct the answer is that he should consume the same number of calories as he burns. If he were eating less, he would lose weight, and if he were eating more, he would gain weight. Eating food from only one food group is not healthy.
Hope this helps!