Pregnancy and birth

IB Biology: Pregnancy and birth

Students study simply how the hormone HCG stimulates the ovary to secrete progesterone during early pregnancy. Once the embryo is implanted, its placenta facilitates the exchange of materials between the mother and fetus while continuing the production of estrogen and progesterone until positive feedback involving oxytocin leads to birth. Using simple diagrams and IB style questions students make a few notes and test...

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