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A student went out to the school track and walked two laps, ran two laps, and then walked two more laps. On the grid below, draw a line that shows what most likely happened to the pulse rate of the student during these activities

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  • WorldCitizen

    So, first, before the student started doing sports, he or she had a baseline: this is the first, the lowest part of the line.

    Then, the pulse went a little up, when the student was walking.

    When the student was running, the pulse went very high - this is the highest spike.

    After this, the student was walking again, so the pulse went down, butnot to the baseline