14. Which of the following is NOT one of the body’s major organ systems?
A. The cardiovascular system
B. The cellular system
C. The gastrointestinal system
D. The musculoskeletal system
14. Which of the following is NOT one of the body’s major organ systems?
A. The cardiovascular system
B. The cellular system
C. The gastrointestinal system
D. The musculoskeletal system