The ovary is the structure in the human female reproductive system that releases eggs on a monthly basis as part of the menstrual cycle. The other options, such as the fallopian tubes, cervix, and uterus, serve different functions related to reproduction but do not release eggs themselves. Therefore, the correct answer is B. Ovary. ;
The ovary is the structure in the human female reproductive system that releases eggs in a monthly cycle, specifically during the process of ovulation. The menstrual cycle involves different phases where the ovary alternates the release of eggs approximately every month. Therefore, the answer is B. Ovary.
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