Which system's function for a fetus is not performed by the placenta?
A)digestive
B)respiratory
C)circulatory
D)urinary
E)none of the above; the functions of all of the systems are performed by the placenta

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The Answer of Which system's function for a fetus is not performed by the placenta?
A)digestive
B)respiratory
C)circulatory
D)urinary
E)none of the above; the functions of all of the systems are performed by the placenta

Which System's Function for a Fetus Is Not Performed by the Placenta