Fetal Development Project
Stages of Pregnancy and Development. Fertilization. Embryonic development. Fetal development. Parturition (childbirth) Fertilization. The oocyte is viable for 12 to 24 hours after ovulation. Sperm are viable for 12 to 48 hours after ejaculation. Sperm cells must make their way to the uterine tube for fertilization to be possible. Mechanisms of ... ................
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