★ Beneath the Skin Quiz
The main role of your blood is to
A. carry oxygen to the rest of your body
B. carry carbon dioxide back to your lungs
C. carry nutrients to the cells of your body
D. all of the above
Preview next quiz:
Identify which part of the musculoskeletal system that causes the skeleton to move.
A. Bones
B. Muscles
C. ligaments
D. joints
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