Explain any differences in the pulse rate at rest and after exercise. explain in your own words please no copy and paste will know thanks

To keep blood moving throughout your body, your heart beats continuously. Its pace varies according on your activity level; it is lower when you are sleeping or at rest, and greater when you exercise, in order to provide your muscles with enough new oxygenated blood to keep them operating properly

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frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa