CFU/DAY 2: Animal Crossword

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Across
  1. 4. an internal skeleton, such as the bony or cartilaginous
  2. 5. an animal that has a backbone and a skeleton
  3. 6. main type of connection tissue seen throughout the body
  4. 7. the property of being divisible symmetrically
  5. 10. an air-breathing egg characterized by a shell and extraembryonic membranes
  6. 12. shed old feathers, hair, skin, etc
  7. 14. one of two body types occurring in members of invertabrate animal phylum cnidaria
  8. 17. responsible for lactation, reproduction of milk
  9. 18. heat has to be applied
  10. 19. internal gas-filled organ that contributes to the ability of many bony fish controlling their buoyancy
  11. 21. organ that develops in the uterus during pregnancy
Down
  1. 1. cold-blooded animal without a backbone
  2. 2. the external skeleton that supports and protects an animal's body
  3. 3. symmetry around a circular axis
  4. 8. any so-called cold-blooded animal
  5. 9. two parts of something that are not equal
  6. 11. asexual reproduction
  7. 13. has both kinds of reproductive organs
  8. 15. anything associated with or occurring on the bottom of a body of water
  9. 16. hydraulic system used by echinoderms
  10. 20. an extra piece of tissue that grows inside your body