PLEASE HELP!!
Which of these is necessary for gas exchange in the respiratory system?
a. At...
Biology, 20.04.2021 08:50 mkuhauluasong2020
PLEASE HELP!!
Which of these is necessary for gas exchange in the respiratory system?
a. At least 30% oxygen in the air
b. The exchange surface must be moist c. The air must be cooler than body temperature
d. The blood cannot be moving
Answers: 2
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