[问答题]
Below is a diagram of the internal repr
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ko 8+8.8kn /rpemn9y3le lu rvncy.
1.1.Label the placenta using the letter P.
1.2.Explain how the structure of the placenta is related to its function.
1.3.Suggest an outcome if the placenta does not produce enough of the correct hormones during pregnancy.
2.Outline the role of progesterone in pregnancy.