aerobic respiration
Heart rate increases.
the heart increases in rythm and pumps more blood to the muscles
running
During exercise our blood circulation speed increases. It effect in amino acid and a molecule ATP which causes muscles to increase strength.
bone stimulation
lactate
The pressure in the pulmonary artery increases during exercise if the cardiac output increases.
Because during exercise more oxygen is required , so more blood is pumped to meet the requirement.
it increases
It INCREASES.
Increases in length
You will be fat.