Internal respiration requires a higher oxygen concentration in the _____ than in the _____.
A) blood; lungs
B) blood; cells
C) cells; blood
D) lungs; blood

Question

Quizplus · Accepted Answer

Internal respiration involves the exchange of gases between the blood and body cells, requiring a higher oxygen concentration in the blood than in the cells to facilitate the diffusion of oxygen into the cells.

Internal Respiration Requires a Higher Oxygen Concentration in the _____