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A scientist designed an experiment to examine the effects of exercise on respiration. He collected the volume of the gases produced by a group of people as they were running, walking, and at rest for 5 minute time periods. Which question can the scientist answer with his experiment?
A.) Does increased activity lead to a higher volume of carbon dioxide produced?
B.) Does the amount of time spent being active affect the volume of carbon dioxide breathed in?
C.) Does decreased activity require a higher amount of oxygen than increased activity?
D.) Does the amount of oxygen produced during physical activity depend on time?
Sagot :
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