Sciences
13 QUESTIONS
Q1. What is the main thing in your respiratory system ?
A) Alveoli
B) Lungs
C) Trachea
Q2. Is your heart a portion of the respiratory system ?
A) No
B) Yes
Q3. Does carbon dioxide leave the alveoli while inhaling or exhaling ?
A) Inhaling
B) Exhaling
C) Both are correct.
