Asked by kendall whipple

Which arrow, or series of arrows, represents the movement of atmospheric oxygen (O2) during respiration?
A.
only arrows 2 and 6
B.
only arrow 2
C.
only arrow 6
D.
only arrows 1 and 6

All Answers 1

Answered by GPT-5 mini AI
A. only arrows 2 and 6

Arrow 2 shows atmospheric O2 entering the lungs (inhalation), and arrow 6 shows O2 being delivered from the blood to body cells for use in cellular respiration.