Animal Quiz

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Across
  1. 2. A structure in a sponge responsible for protection
  2. 3. A type of flatworm that is a parasite
  3. 6. A type of cnidarian that is bowl shaped and has stinging cells on the bottom
  4. 7. Describes an organism that feeds on live animals
  5. 11. A collection of cells working together for the same function
  6. 12. An organism that has stinging cells and brings food into its central cavity
  7. 13. An invertebrate with a soft, unsegmented body
  8. 15. A type of cell in a sponge responsible for digestion
  9. 17. A type of cnidarian that is vase shaped and has stinging cells on top
  10. 18. A collection of tissues working together for the same function
  11. 19. A structure in a sponge that is the entrance for water
  12. 20. The basic unit of structure and function in living things
Down
  1. 1. A collection of organs working together for the same function
  2. 2. A type of worm that has a body made up of linked segments
  3. 4. Means 'stomachfoot.' A mollusk with one or no shell
  4. 5. A type of flatworm that is a scavenger
  5. 8. Describes an organism that feeds on dead animals
  6. 9. A type of mollusk with two shells. Filter feeder
  7. 10. An invertebrate with an internal skeleton and a water vascular system
  8. 12. A type of cell in a sponge responsible for moving water through it
  9. 14. Invertebrate animals with no tissues. Looks like a hollow bag
  10. 16. A type of mollusk with tentacles