12. What happened during the process of fertilization? A. The ovaries release egg cells. B. The uterine wall becomes thick. C. The uterine wall discharges blood. D. The sperm cell unites with an egg cell. 13. In the menstrual cycle, what happens during the menstr A. The uterine lining begins to break down and bleeding Ain hortin inues to mature and moves
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Answer:
12. D
13. D
Explanation:
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