Biology, 27.11.2019 16:31 harleyquinn1241

2. which structures in the diagram above connects the umbilical vein with the vena cava and connects the pulmonary artery with the aorta?

a: a, the ductus arteriosus; d the ductus venosus
b: b, the ductus arteriosus; d the ductus venosus
c: b, the ductus venosus; d the ductus arteriosus
d: a, the ductus venosus; d the ductus arteriosus

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