★ Breathing System Quiz
What is the purpose of the breathing system?
A. To carry air to and from the lungs
B. To warm and moisten the air
C. To trap dirt particles and bacteria
D. To supply oxygen for respiration and remove waste products
Preview next quiz:
What is the percentage of carbon dioxide in exhaled air?
A. 78%
B. 14%
C. 5%
D. Variable
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