It controls the airflow resistance and air distribution in the lungs
It really just picks up oxygen and much more but I don't know the rest... Lol xD
This is a great question.... I also need this for a test I willl soon be doing. I honestly do not know but I would really like to know. I came to this website to see, but I found different answers so I would really like to know which of the above is the correct answer. Please and thank you.
They pass blood through your body