INVERTEBRATES REVIEW

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Across
  1. 2. the body form of a cnidarian that attaches itself to a surface
  2. 3. body plan of invertebrate
  3. 4. the phylum of invertebrates that have stinging cells
  4. 6. a concetrated mass of nerve cells
  5. 8. a type of worm with segmented bodies
  6. 9. a type of symmetry where the body is organized around the center
  7. 11. animal without a backbone
  8. 13. the hole on the top of the sponge where water leaves its body
  9. 16. a type of worm that has a long, slim body with a simple nervous system
  10. 18. the simplest type of worm that includes planarians, flukes, & tapeworms
Down
  1. 1. a type of cnidarian that uses tentacles to catch food
  2. 3. an identical, or almost identical, repeating body part
  3. 5. a way that sponges reproduce or grow back body parts
  4. 7. the body form of a cnidarian that can swim through the water
  5. 8. Animals that don't have symmetry are ________.
  6. 10. a pouch lined with cells that release chemicals that break down food into small particles
  7. 12. a type of symmetry where the 2 sides of the body mirror each other
  8. 14. the simplest invertebrates
  9. 15. the phlyum that sponges belong to
  10. 17. the holes on the outside of a sponge's body