Examlex
Choose the one alternative that best completes the statement or answers the question.
Solve the problem.
-In how many ways can 5 students stack their homework assignments?
Heartbeat
The rhythmic contraction and relaxation of the heart muscle, resulting in the pumping of blood through the body.
Diastole
The phase of the cardiac cycle during which the heart relaxes and fills with blood.
Heart Cycle
The sequence of events that occur in the heart during one heartbeat, encompassing both the contraction (systole) and relaxation (diastole) phases.
Relaxation
The act or process of becoming less tense, stressed, or anxious, often involving techniques or activities that promote this state.
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