A. Muscular walls of the lungs
B. Costal muscle
C. Diaphragm
D. Costal muscle and diaphragm
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Answer: D. Costal muscle and diaphragm The ventilation movements of the lungs in mammals are governed by costal muscle and diaphragm.
Answer: D. Costal muscle and diaphragm
The ventilation movements of the lungs in mammals are governed by costal muscle and diaphragm.
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