One ovary releases an egg. Then, it moves along the Fallopian tube., Sperm enter the female body through the vagina and travel to the Fallopian tube., A single sperm cell penetrates the egg and fertilizes it. At this moment, a zygote is formed., The zygote starts to divide rapidly and forms and embryo., The embryo implants in the uterus. It continuous to grow and develop there..

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