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?

Question

a
Does the amount of time spent being active affect the volume of carbon dioxide breathed in?
b
Does the amount of oxygen produced during physical activity depend on time?
c
Does increased activity lead to a higher volume of carbon dioxide produced?
d
Does decreased activity require a higher amount of oxygen than increased activity?

Answer 1

The scientist's experiment specifically examines the effects of different levels of activity (running, walking, and resting) on the volume of gases produced, which would include carbon dioxide production during exercise.

Therefore, the question that the scientist can directly answer with his experiment is:

c. Does increased activity lead to a higher volume of carbon dioxide produced?

This question aligns with the data he is collecting regarding the volume of gases produced at various levels of physical activity.