Multiple Choice
Refer to the diagram below. Which of the following represents the correct direction of the formation of the heartbeat?
A) 1, 2, 3, 4, 5, 6
B) 1, 3, 6, 2, 4, 5
C) 1, 6, 5, 4, 3, 5
D) 1, 6, 3, 2, 4, 5
E) 6, 5, 4, 3, 2, 2
Correct Answer:

Verified
Correct Answer:
Verified
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