1) Differentiation

2) Morphogenesis

3) Growth

4) Reproduction

5) Evolution 

The process of a single cell giving rise to hundreds of different cell types 

The organization of differentiated cells into select patterns 

the increase in cell size until they reach a point of regulation 

Information transfer to form a new organism 

- 1820's 

- worked with embro of several organism

- lost labels on jars (had to find ways to distinguish)

- noticed phylotypic stage was similar between organisms 

- Created VanBaer Laws as result 

1) Phylum before class/order

2) General Characteristics before specialized 

3) Embryo don't pass through adult stage of other species 

4) Early embryo of higher species is not like that of lower species 

- common stages seen in all animals

- most have same patterns between species