Free Flashcard From Chapter 10. Human Development.
The Germinal Stage-When does it occur?-How does it begin?-What happens during?
1. It occurs the first 2 weeks after conception2. It Begins when a zygote is created by fertilization3. Zygote becomes a mass of divided cells.Mass moves down fallopian tube to uterine cavity.Implantation occurs around the 7th day, cells rapidly reproducePlacenta develops.