science

123456789101112
Across
  1. 3. with a backbone
  2. 4. have hard scales and live on land
  3. 7. skin is thin so they can breathe
  4. 9. does not have tubes, roots, stems, and leaves
  5. 12. scientists who study plants
Down
  1. 1. covered in either fur or hair
  2. 2. does not have a backbone
  3. 5. have feathers and use a beak as teeth
  4. 6. seed plants, ferns, and mosses
  5. 8. vascular nonvascular
  6. 10. has tubes, roots, stems,and leaves
  7. 11. covered in scales and has fins to swim