Across
- 5. a type of symmetry do vertebrates have
- 6. is enclosed by the vertebrae in vertebrates
- 7. muscle that serve to live
Down
- 1. a system in vertebrates is highly developped and enclosed by a skull
- 2. do not have backbone
- 3. muscle that serve to respiratory
- 4. bone that the vertebrates have and the invertebrates didn't have