A cluster of cells in the right atrium that serves as the pacemaker of the heart is the sinoatrial (SA) node
Indicate whether the statement is true or false
TRUE
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Supplement manufacturers can make structure/function claims without FDA approval
Indicate whether the statement is true or false
Which of the following terms means the percentage of total blood volume composed of red blood cells?
A. Viscosity B. Hematocrit C. Partial prothrombin D. Complete blood count E. Hemoglobin
Which of the below is an action-oriented objective in a SMART goal-setting system?
A) Increase my running speed to an 8-1/2-minute mile pace. B) Run on the treadmill 4 times a week for at least 30 minutes. C) Increase my distance by 1/2 mile every other week. D) Complete a marathon next year.
Which of the following is an example of a vigorous activity?
A. Horseback riding B. Cross-country skiing C. Ballroom dancing D. None of these