Animal Classification

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Across
  1. 5. A bony spine covered with skin to help a fish swim.
  2. 6. Backbone
  3. 8. Something that makes a group different.
  4. 10. An animal that mainly eats meat.
  5. 12. One of a pair of organs fish use to breath underwater.
  6. 13. Controls body temperature by using surroundings.
  7. 16. An animal that eats only plants.
  8. 17. An animal without a backbone.
  9. 18. An animal with a backbone.
  10. 20. To travel back and forth from one place to another.
  11. 23. The early form of frogs that has gills, and a tail.
  12. 24. To continue to live.
Down
  1. 1. An animal that eats both plants and animals.
  2. 2. A place where plants and/or animals live and grow.
  3. 3. A cold-blooded animal with tough scaly skin.
  4. 4. To put things into groups.
  5. 7. A major group into which all living things are classified.
  6. 9. Having a constant body temperature.
  7. 11. To spend a season resting or sleeping.
  8. 14. The stages through which a living thing goes from birth to death.
  9. 15. Living, growing, or found in water.
  10. 19. A small disc on the outside of the body of fish and reptiles.
  11. 21. To change.
  12. 22. An animal that can live on land and in water.