Which way would O2 and CO2 diffuse during internal respiration?
a) Both O2 and CO2 would diffuse into the systemic capillaries.
b) O2 would diffuse into the systemic capillaries, and CO2 would diffuse into the cells.
c) O2 would diffuse into the pulmonary capillaries and CO2 would diffuse into the alveoli.
d) O2 would diffuse into the cells, and CO2 would diffuse into the systemic capillaries.
Ans: d) O2 would diffuse into the cells, and CO2 would diffuse into the systemic capillaries.
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