Time of life when a child changes into an adult, Adolescence, Cervix, Embryo, Placenta, Muscular opening to the uterus. Holds the growing embryo in place during gestation, Placenta, Scrotum, Cervix, Vagina, The earliest stage of life when the cells of the zygote are multiplying and growing., Gamete, Embryo, Vagina, Uterus, Tube which runs from ovaries to uterus. (oviduct), Sperm Cell, Gestation, Fallopian Tube, Umbilical Cord, Fusing of the male and female gametes to form a zygote, Fertilisation, Cervix, Urethra, Gestation, Later stage of gestation when the embryo has begun form characteristics of a baby., Foetus, Gestation, Placenta, Scrotum, Male or female sex cell. Sperm or ovum in humans. Pollen or ovule in plants., Vagina, Gamete, Embryo, Menstrual Cycle, Fertilised egg (zygote) attaching to the wall of the uterus, Implantation, Fallopian Tube, Chromosome, Amniotic Sac, A cycle which includes the thickening of the uterus wall and the ovulation of an egg (day 14)., Chromosome, Menstrual Cycle, Zygote, Penis, Organ of the female reproductive system where the eggs are kept., Ovary, DNA, Fertilisation, Sperm Cell, Egg. Female gamete. Found in ovary., Ovum, Placenta, Uterus, Gamete, Small cell with a tail for swimming, carries male genetic information to the egg for fertilisation, Zygote, Vagina, Testes, Sperm Cell, Fertilised cell which contains the nuclei from both male and female gametes., Foetus, Embryo, Zygote, Cervix

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