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Lessons 1+2
| Term | Definition |
|---|---|
| homeostasis | keeping internal body conditions stable |
| adaptation | structures and behaviors that allow animals to preform there functions |
| vertabrate | animals with a backbone |
| invertabrate | animals without a backbone |
| tissue | a group of similar cells that preforms a specific function |
| organ | made up of different tissues |
| radial symmetry | if many imaginary lines can be drawn through a central point to divide it into two mirror images |
| bilateral symmetry | if only one imaginary line can be drawn to divide it into halves that are mirror images |