Biology, 11.10.2019 12:50 coopkm24

30
which statement describes the condition of the heart at the point indicated in the electrocardiogram?

a. the atria are contracting and pushing blood into the bottom ventricles of the heart.

b. the valves of the aorta and pulmonary artery close, producing the first heartbeat.

30 which statement describes the condition of the heart at the point indicated in the electro

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30 which statement describes the condition of the heart at the point indicated in the electrocardiogram? a. the atria are contracting and pushing blood into the bottom ventricles of the heart. b. the valves of the aorta and pulmonary artery close, producing the first heartbeat.

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30
which statement describes the condition of the heart at the point indicated in the electrocardiogram?

a. the atria are contracting and pushing blood into the bottom ventricles of the heart.

b. the valves of the aorta and pulmonary artery close, producing the first heartbeat.