23. Which of the following is true?
A. Nasal cavity it's a filter, warm and moisten the air that enters the body.
B. Trachea known as throuat and air passes through as it goes inside the body.
C. Diaphragm is dome-shaped muscles at base of rib cage that allows lungs to expand.
D. All of the above.
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Answers & Comments
Answer:
D.all of the above
Explanation:
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