a . name the two kinds of muscles that helps in respiration-------------------
b . ---------------------- are the living members of lungs .
c . air contains about --------------- percentage of oxygen .
d. -------------------- respiration produces energy stored as ATP , in mitochondria .
e . each ATP, molecules gives ------------ calories of energy .
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a. The muscles of respiration are those muscles that contribute to inhalation and exhalation, by aiding in the expansion and contraction of the thoracic cavity. The diaphragm and, to a lesser extent, the intercostal muscles drive respiration during quiet breathing.
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