Biology, asked by spider950, 6 months ago

The atrioventricular node is a secondary _____of the heart.
1 Pacemaker
2 Phasemaker

Answers

Answered by navalkishor6572

1

Answer:

Pacemaker............

Answered by Anonymous

1

Answer:

option A pacemaker

Explanation:

please mark as brainleist answer n follow

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