Question

wednesday 9/10: respiration lab
which evidence from the lab supports the claim that exercise increases breathing rate?
a) breathing rate measured at rest is higher than after exercise.
b) breathing rate stays the same before and after physical activity.
c) breathing rate measured after 1 minute of exercise is higher than at rest.
d) breathing rate decreases after watching a video.

Explanation:

To support the claim that exercise increases breathing rate, we need evidence showing a higher breathing rate after exercise compared to rest.

• Option A says rest rate is higher than after exercise, which contradicts the claim.
• Option B says rate stays the same, so it doesn't support an increase.
• Option C shows breathing rate after 1 minute of exercise is higher than at rest, which directly supports the claim.
• Option D is about watching a video, not exercise, so it's irrelevant.

Answer:

C) Breathing rate measured after 1 minute of exercise is higher than at rest.