Biology The Unity Diversity
Quiz 38: Respiration
-Respiratory proteins such as __________ in red blood cells and __________ in muscle bind oxygen and help maintain gradients that favor gas exchange.
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-In animals,respiration is a physiological process by which O2 enters the internal environment and CO2 leaves by diffusing across a thin,moist __________.
-In mammals,lungs inflate when muscles increase the size of the ______ cavity.
-Invertebrates on land use __________ or __________ systems for gas exchange.
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