Protons, neutrons..................................
Well red blood cells carry oxygen to muscles
Circulatory system is probably the answer you are looking for.
I would say D. Let me know if i am wrong.
Muscles bones no on organs and no on skin
Answer:
Law of Lateral Continuity The Grand Canyon.
and
he same rock layers on opposite sides of the canyon. The matching rock layers were deposited at the same time, so they are the same age.
