11. which of the following describes the main difference between energy that comes from simple foods (such as sugar or candy) and those that are complex (such as oatmeal)?

Simple foods such as white bread and fruits are simple sugars which means that the body is able to break it down quickly to provide your body with energy. Simple sugars provide the body with "fast" energy which is short term energy or energy that is used shortly after eating. Then there are complex carbs such a whole wheat bread and oatmeal which as carbs that provide more long term energy and are more sustainable and last for longer. The complex carbs also provide the same amount of energy but give it over a longer time period

Cardiorespiratory fitness is vital to lifetime fitness as it has the ability to deliver proper nutrients like oxygen to the different organs of the body and it also removing waste products every prolong physical exercise. a happy heart also does reduces the risk of many diseases which is the answer.