(04.01 MC)
The first heart sound is made by
A- blood moving to the atria
B- blood movi...
Biology, 29.04.2021 05:00, familyvazquez7
(04.01 MC)
The first heart sound is made by
A- blood moving to the atria
B- blood moving to the ventricles
C- opening of the valve between the atria and the ventricles
D- closing of the valve between the atria and the ventricles
Answers: 2
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