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Question

The substance that is transported through umbilical cord

A
Urea.
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B
Antibodies.
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C
Carbon dioxide.
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D
All of the above.
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Solution

The correct option is B All of the above.
The umbilical cord is responsible for the connection of the fetus with the mother during the embryonic development in the uterus. The placenta is the region where the umbilical cord is attached. The cord carries the antibodies to the fetus from the mother's blood to provide protection. the urea and the carbon dioxide are the wastes which are carried back to the placenta.
Thus, the correct answer is option D.

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