If a secondary oocyte is fertilized and successfully implants in the uterine lining,it becomes a pre-embryo and begins to secrete
A)progesterone.
B)estrogen.
C)gonadotropin-releasing hormone.
D)human chorionic gonadotropin.
E)gonadotropin-inhibiting hormone.

Question

Quizplus · Accepted Answer

When a secondary oocyte is fertilized and implants in the uterine lining, it becomes a pre-embryo which secretes human chorionic gonadotropin (hCG). hCG maintains the corpus luteum and sustains progesterone secretion, which helps to maintain the uterine lining and support early pregnancy.

If a Secondary Oocyte Is Fertilized and Successfully Implants in the Uterine