Plz help fast if right answer will mark brainlest A man is resting comfortably and breathing easily. His cells are most likely using
to produce accessible energy.

Explanation:

Shortness of breath — known medically as dyspnea — is often described as an intense tightening in the chest, air hunger, difficulty breathing, breathlessness or a feeling of suffocation. Very strenuous exercise, extreme temperatures, obesity and higher altitude all can cause shortness of breath in a healthy person.