Vertebrates

Edit Answers
1234567891011121314151617181920
Across
  1. 2. a reptiles body is covered in these
  2. 4. Kind of animal that lives in the water
  3. 6. Most mammals have four of these
  4. 8. Animals without a backbone
  5. 13. Animals that only eat plants
  6. 16. A kind of animal that is usually covered in fur and has four limbs
  7. 17. Animals that eat plants and other animals
  8. 19. Mammals use these to breath
  9. 20. The mouth of a bird
Down
  1. 1. When an animal takes on the temperature of their surroundings
  2. 3. fish use these to breath
  3. 5. kind of animal that has gills as a baby and lungs as an adult
  4. 7. When an animals body tries to maintain a constant body temperature
  5. 9. Animals with a backbone
  6. 10. kind of animals that can be found on land and are covered in hard scales
  7. 11. Animals that eat other animals
  8. 12. A bird's body is covered in these
  9. 14. Some birds sit on their eggs to keep them warm
  10. 15. fish use these to swim
  11. 18. animals without arms or legs move on the ground this way