8. Why are the cilia and the mucus membrane important in the respiratory system
A. They make the respiration process faster.
B. They push the air into the lungs.
C. They cleanse and warm the air before it reaches the lungs.
D. They enable the blood to carry oxygen.
9. Which of the following is an example of a muscle pair to work together?
A. facial muscles and biceps
B. facial muscles and triceps
C. quadriceps and biceps
D. biceps and triceps
10. As blood passes through the lungs, oxygen is being picked up by
A. platelet
B. WBC
C. RBC
D. hemoglobin​