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4 December, 14:43

The graph represents a person's heart rate in beats per minute during 30 minutes of exercise. Which statement best describes the relationship between heart rate and time during exercise? The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually increases for 5 minutes. The heart rate decreases for 6 minutes, remains constant for 19 minutes, and then gradually increases for 5 minutes. The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually decreases for 5 minutes. The heart rate remains constant for 6 minutes, increases for 19 minutes, and then gradually decreases for 5 minutes.

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  1. 4 December, 15:01
    0
    Answer:The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually decreases for 5 minutes. Positive
  2. 4 December, 15:08
    0
    We know that

    when we start exercise our hear beats starts increasing gradually

    because blood flowing rate becomes higher

    and it keeps increasing upto a certain limit

    because for normal human beings maximum heart rate is 135 beats per minute

    and it remains constant there for few minutes

    and as we slow down slowly

    It will start decreasing gradually and then becomes normal

    we can see the graph

    so,

    The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually decreases for 5 minutes ... Answer
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