★ Gaseous Exchange in Humans Quiz
Carbon dioxide diffuses from ________ to alveolus
A. trachea
B. lung
C. blood capillary
D. bronchus
Preview next quiz:
Oxyhaemoglobin gives up O2 when …
A. CO2 concentrations are high.
B. Body temperature is lowered.
C. pH values are high.
D. O2 concentrations are higher.
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