i beleive that is the respiratory system but ill double check in a m inute
alright heres all your answers for that test question 1 true
question 2 oxygen question 3 carbon dioxide question 4 true question 5 alvoei question 6 diaphram question 7 respitory system the last 3 are all true i hope i helped
Answer:
C.Hydrochloric Acid
Explanation:
hydrochronic acid is naturally in your stomach to help digest food
Amino acids make up proteins. ansd DNA is transcripted to make RNA which is transported to ribosomes out of the nucleus which then reads the codons to choose amino acids that combine to form a polypeptide chain. the polypeptide chain that's long enough will make a protein which gives you your traits