Animal Kingdom

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Across
  1. 2. group of animals with no symmetry, cephalization, or gut
  2. 3. animal that can regulate its own body temperature (warm-blooded
  3. 6. group of animals with a backbone
  4. 8. group of animals with jointed appendages
  5. 10. animals without a backbone
  6. 12. vertebrate that usually lives in water but can also live on land as an adult
  7. 14. mammal that provides embryo with oxygen and food through placenta
  8. 15. mammal with a pouch to raise its young
  9. 16. flexible rod found in chordate animals
Down
  1. 1. support structure on the inside of the animal bodies
  2. 4. means that plants can be divided by one or more imaginary lines into mirror-image halves
  3. 5. group of animals with stinging cells (jellyfish)
  4. 7. animal with a body temperature that is determined by the environment (cold-blooded)
  5. 9. effort to define boundaries between various kinds of animals
  6. 11. support structure on the outside of animals bodies
  7. 13. animals known for their soft body and usually a shell (clam)