Question

question 1-6
a students hypothesis is that increased exercise causes increased heart rate. heart rate is determined by taking the pulse, which is measured in beats per minute (bpm). which of the following data would support this students hypothesis?
when sitting, her pulse was 90 bpm; when walking, her pulse was 90 bpm.
when sitting, her pulse was 70 bpm; when standing, her pulse was 50 bpm.
when running, her pulse was 100 bpm; when sitting, her pulse was 60 bpm.
when running, her pulse was 65 bpm; when standing, her pulse was 70 bpm.

Explanation:

The hypothesis is increased exercise causes increased heart - rate. Running is more exercise than sitting. Only in the third option does heart rate increase with more exercise.

Answer:

When running, her pulse was 100 BPM; when sitting, her pulse was 60 BPM.