chapter 22 section reviews

					Chapter 22 Section Reviews

22-1 p.446
1. A series of cell divisions that occur in the zygote immediately after fertilization
2. ectoderm, mesoderm, endoderm
3. When cells specialize and do specific functions
4. Parts of the embryo that influence the development of cells nearby

22-2 p.451
1. Either inside or outside the mothers body
2. Birds and reptiles
3. Placental and non placental

Chapter Review p.454
1. B
2. C
3. B
4. D
5. C
6. D
7. A
8. C
9. C
10. A

				
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