Fertilization is the fusion between an ovum and a sperm cell. It occurs following coitus that ends with the man ejaculating into the womans vagina during her ovulation period.

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Keywords: anatomy, body, cell, cell., coitus, color, ejaculating, ends, fertilization, fusion, human, illustration, man, occurs, ovulation, ovum, period., reproduction, reproductive, sperm, system, vagina, womans