Cars burn gas to release the energy stored in the fuel. Organisms burn food for the same reason. If you were to get up and walk around, you would use more energy, so your amount of aerobic respiration would increase. If you went jogging, it would increase even more, and you might start to breathe harder. That is your body's way of getting more oxygen into the blood so the blood can get the oxygen to the cells that are doing the work.
Breathing gets oxygen into the body, but aerobic respiration occurs at the cellular level.
It is important to remember that both plants and animals make use of aerobic respiration . Trees and ferns may not jog much, but they still need to release the energy stored in food.