SVT vocabulary

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