ANTS Digita
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Answer:
Amount of sleep
Explanation:
Sleep is vital for performing any kind of task in our everyday lives. The other answers aren't as important.
Its main function is to act as a barrier to protect the body from the outside world. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature.
Answer:
not really, however if the resting heart rate is below 60 bpm, then bradycardia can be a serious problem because the heart rate is very slow and the heart can't pump enough oxygen-rich blood to the body.
Explanation:
I’m pretty sure cardiovascular endurance