18. It is where the exchange of gases takes place.
A. lungs
B. heart
C. pharynx
19. Its main function is to exhale and inhale carbon dioxide.
A. larynx
B. diaphragm
C. heart
D. pharynx
please answer
Answers
Answered by
1
Answer:
18=A. lungs
19=B. Diaghragm
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