Answer:I think they would die from not doing anything.
During exercise there is an increase in physical activity and muscle cells respire more than they do when the body is at rest. The heart rate increases during exercise. The rate and depth of breathing increases - this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it.
The process that allows for the growth and development of a multicellular organism is mitosis
So the answer is A. mitosis
Answer:
Ventilation and mixing outdoor air with indoor air
Explanation: