Animals and their characteristics

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Across
  1. 2. A reptile with no legs
  2. 4. Insects have a _____ outer covering
  3. 6. A mammal that does not give birth but lays eggs
  4. 7. Reptiles and birds reproduce by laying ______
  5. 8. Group of animals that have scales as their outer covering and live in water
  6. 9. An animal that can breathe through its lungs and moist skin
  7. 11. Has 3 body parts and 6 legs
  8. 12. Group of animals that gives birth to its young alive
  9. 15. Reptiles have dry skin with ______
  10. 17. Group of animals that can breathe through its moist skin
Down
  1. 1. The outer covering of birds
  2. 3. Mammals give _____ to their young alive
  3. 5. Group of animals that have dry scaly skin
  4. 10. A fish breathes through its ______
  5. 13. A flying mammal
  6. 14. A bird that cannot fly and lives on land and in water
  7. 16. A mammal that lives in water
  8. 18. Group of animals that have a pair of wings and an outer covering of feathers