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Biology 7 Online
OpenStudy (shaniehh):

Which statement describes the condition of the heart at the point indicated in the electrocardiogram?

OpenStudy (shaniehh):

OpenStudy (shaniehh):

A.)The muscles of the atria depolarize. B.)The muscles of the ventricles depolarize. C.)The muscles of the atria repolarize. D.)The muscles of the ventricles repolarize.

OpenStudy (shaniehh):

@paki @TheSmartOne

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