54. In humans, the follicular cells that remain behind in the ovary following ovulation become__________.
(A) the ovarian endometrium that is shed at the time of the menses
(B) a steroid-hormone synthesizing structure called the corpus luteum
(C)the thickened portion of the uterine wall
(D) the placenta, which secretes cervical mucus
阿摩線上測驗
登入