Sample Response: If a cat is napping, its heart rate will be slower than when it is playing because its heart will not need to pump as much blood to its muscles. What did you include in your response? Check all that apply.If the cat is playing, then its heart rate and breathing are fast.A napping cat is not moving, so its heart rate is slower than if it were running around.Fatima can test the cat’s heart rate while napping and while playing, and compare the two.