The combination of heart, lungs, and circulatory system that supplies oxygen and nutrients to working muscles is known as the
A. cardiorespiratory system.
B. musculoskeletal system.
C. enteric nervous system.
D. central nervous system.
Answer:A
The combination of heart, lungs, and circulatory system that supplies oxygen and nutrients to working muscles is known as the
A. cardiorespiratory system. B. musculoskeletal system. C. enteric nervous system. D. central nervous system.