1. Welcome Scientists! Today:
Go Over Fossil Assemblage and Body Structures and Patterns Activity
Other Interesting Patterns…

2. Things that have similar body patterns
Echinoderms
Marine environments
Radial symmetry
Several arms (5 or more, mostly grouped 2 left - 1 middle - 2 right) radiating from a central body (= pentamerous).
The body actually consists of five equal segments, each containing a duplicate set of various internal

3. If their bodies look similar, what about their embryos?
Go to Mrs. Ellis’s Website
Click on Helpful Resources
Click on the link: NOVA Guess the Embryo
Read the introduction and then click Launch Interactive
As you look at the different embryos, record their similarities