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The diaphragm is the portion of the respiratory system composed of a dome-shaped muscle that runs across the upper abdomen and is attached to the bottom of lungs. True or False

User EngineerX
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Answer:

the answer is its true .

Step-by-step explanation:

User Dortzur
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This is true. The diaphragm is what pumps air into the lungs therefore it has to be attached.
User JonnyJD
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