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Reproductive system, period 2, Joshua Ojeda (Hormones of the reproductive…

- - - - Occurs because estrogen and progesterone are low
    - - The endometrium proliferates in response to increasing levels of estrogen. HIgh levels of estrogen cause cervical mucus to become thinner, which allow sperm easier passage into the uterus
    - - Prepares for the implantation of the embryo, endometrium glands begin to produce nutrients for the developing embryo.