The cells would become energy starved leading to ischemia and then infarction. This is if one was unable to do anything else to maintain the homeostasis.
You body however is able to utilize several mechabisms, primarily the use of fats and in extreme cases muscle tissue for the use of energy and ATP production through anaerobic metabolisis.
Where's the choices?? But anyways cardio has to do directly with the heart and it's pace if I do crunches that is NOT cardio respiratory it's neither cardio respiratory hope this helps
No because what ever the cell is it can only make that type of cell Ex: liver cells can only make liver cells and brain cells can only make brain cells.
Diseases or other disorders can be passed down through your family so you need to know your families history to know if you are at an increased risk.