Ok I'm going to get kicked out of the house if I can't find a bf can someone help me please

i-

Explanation:

relationship between pressure and air volume and led to the understanding of how respiration works; i believe this is the correct answer ; /// good luck

i think it's the first one because doctors aren't the ones who get rid of the old needles. most of them time it's not even doctors who give you shots, it's nurses.