something like tunica intima/ interna and tunica media
1/3 im pretty sure......................
Answer:
<h3>★★Human health is influenced by many factors like nutritional, biological, chemical or psychological. It is quite true that environment has a direct impact on those living in it and many diseases are the outcome of man's maladjustment to his environment.</h3>
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.
