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Fertilization
Sperm fertilized ovum in the fallopian tubes -
Period: to
Prenatal Development
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Implantation
Zygote implants/attaches to the wall of the uterus to receive nutrients from the mother's body -
Week 6
Embryo is 1/2 inch long; human features are starting to emerge including eyes and arm and leg buds; lungs and digestive system begin to develop.
