Homework answers / question archive / An elevation of plasma levels of estrogen and progesterone Trophoblastic cells In the absence of human chorionic gonadotropin The luteal phase of the ovarian cycle The endometrium The zygote The proliferative phase of the uterine cycle The graafian follicle The secretory phase of the uterine cycle Menstruation occurs is response to

An elevation of plasma levels of estrogen and progesterone Trophoblastic cells In the absence of human chorionic gonadotropin The luteal phase of the ovarian cycle The endometrium The zygote The proliferative phase of the uterine cycle The graafian follicle The secretory phase of the uterine cycle Menstruation occurs is response to

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1. An elevation of plasma levels of estrogen and progesterone
2. Trophoblastic cells
3. In the absence of human chorionic gonadotropin
4. The luteal phase of the ovarian cycle
5. The endometrium
6. The zygote
7. The proliferative phase of the uterine cycle
8. The graafian follicle
9. The secretory phase of the uterine cycle
10. Menstruation occurs is response to