help me please??????????

Biology
Tutor: None Selected Time limit: 1 Day

The pacemaker of the human heart is the AV node.

Question 4 options:
Apr 20th, 2015

The answer is:

TRUE

Apr 20th, 2015

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Apr 20th, 2015
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Apr 20th, 2015
Feb 25th, 2017
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