Answer:
node (sinoatrial node) – known as the heart's natural pacemaker. The impulse starts in a small bundle of specialized cells located in the right atrium, called the SA node. The electrical activity spreads through the walls of the atria and causes them to contract. This forces blood into the ventricles.
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Explanation:
absorption has the highest risk of overdose due to increased potency
Answer:
sample answer- Five possible reasons for taking supplements or drugs as part of a a workout regimen are to improve muscle growth, muscle recovery, workout intensity, muscle endurance, and weight control.
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It normally represents a math equation