Which one of the following is called pacemaker of the heart?
A) SA node
B) AV node
C) Chordae tendinae
D) AV septum
Correct Answer:
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A)endocytosis
B)suspension
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A)pulmonary vein
B)pulmonary artery
C)hepatic
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B)fructose
C)glycogen
D)starch
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A)bacteria
B)fungus
C)algae
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