Embryonic Development

1# Differentiation: the process when a cell becomes more and more specialized, taking a unique shape and preparing to preform a particular task.

2#

3# The stages of differentiation are:
  * the cell divides
  * four new daughter cells are created
  * the new cell tissues develop to create two new cells

4# Endoderm => stomach, intestines, lungs, colon, liver, pancreas, bladder
Mesoderm => heart, blood (lymph cells), spleen, skeleton
Ectoderm => nervous system, hair, pigment cells, eye lenses