Guess the concept being described in each item. Unscramble the letters of the highlighted word to come up with the correct answer. Write your answers in your answer sheet. 11. I am the gas that is given off during exhalation. ONBCAR EDDIOXI 12. Igo through the air sacs and into the blood. XYGONE 13. I am a long tube connecting your mouth to your lungs. RATHCAE 14. I serve as a passageway for both food and air. NXAPHRY 15. I am made of body parts that help you breathe in oxygen and breathe out carbon dioxide. PISERAROTYR METSYS 16. These are the lower chambers of the heart. TRICLESVEN 17. These are the upper chambers of the heart. ATMUIR 18. This is what makes the blood red. It carries oxygen and other nutrients in the blood. MOGHEBINLO 19. These blood vessels carry blood to the heart. VENSI 20. These blood vessels carry blood away from the heart. ARRIESTE TO
