Differences between blastulation and gastrulation are:
Blastulation:
1.Rapid mitotic division of the zygote.
2.A single-layered hollow blastula is formed.
3.Cells do not show any movement.
Gastrulation:
1.Slow mitotic division.
2.Three-layered gastrula is formed.
3.Cell masses move from the surface of blastula.