2. An embryo is attached to the wall of uterus by
a. placenta b. ovary c. arteries d. umbilical cord
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B}. Overy
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Explanation:
The placenta connects the developing fetus to the wall of the mother’s uterus during pregnancy. It grows in the wall of the uterus and is attached to the fetus within the uterine cavity by the umbilical cord. The placenta is formed by cells that originate from the fetus and is therefore the first of the fetal organs to develop.
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