31K views · 1.9K reactions | Biology lesson: When a human sperm cell fertilizes a human egg cell, a substantial change occurs and a new human being is created. This human will continue to grow through different stages of development, but he or she will always be the exact same person as at the moment of fertilization. | Live Action | Facebook

✨ In which week can the fetus move its limbs? | Fetal Development 💞 . . Fetal development is a fascinating process that occurs in three main stages: germinal, embryonic, and fetal. Here’s a brief overview of each stage: 1. Germinal Stage (Weeks 1-2) Fertilization: The sperm and egg unite to form a zygote. Cell Division: The zygote undergoes rapid cell division as it travels down the fallopian tube. Implantation: The blastocyst implants itself into the uterine wall. 2. Embryonic Stage (Weeks 3-8