Ratch Column A to Column A.B. A spinal cord B. circulatory system C. carbon dioxide D. heart E. lungs F. cerebrum - 11. The gas that is given off during exhalation. 12. The passageway of both air and food. 13. The main organ of the respiratory system. 14. The cordlike material in the backbone. 15. The primary organ of the central nervous system. 16. It's the transport system of the body. 17. It enables the respiration process in all living things. 18. The liquid part that flows throughout the body. 19. The largest part of the brain. 20. The pumping organ of the body G. blood H. pharynx I. respiratory system J. brain
