Question

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 the amount of time spent being active affect the volume of carbon dioxide breathed in?
B. Does increased activity lead to a higher volume of carbon dioxide produced?
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

Answer 1

The scientist's experiment focuses on the effects of exercise (with varying intensity: running, walking, and resting) on respiration, specifically looking at the volume of gases produced (likely including carbon dioxide and oxygen) during those activities.

Given the options provided, the most appropriate question that the scientist can answer with his experiment is:

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

This is because the experiment directly assesses the respiratory gas volumes during different levels of physical activity, allowing the scientist to determine the relationship between increased activity and the production of carbon dioxide.