inverts and phylum porifera

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Across
  1. 4. process where the larva forms an adult sponge
  2. 5. organisms with no definite shape
  3. 7. left and right halves that are mirror images to each other
  4. 9. a way to refer to an animal's shape
  5. 11. organisms that move little
  6. 16. term used by biologists for the front end of Bilaterally symmetrical animals
  7. 17. organisms that are shaped like globes or spheres
  8. 18. thin layer of jelly-like material
  9. 19. the smallest of all multicellular animals
  10. 20. animals without a backbone
Down
  1. 1. term used to refer to the bottom of a bilaterally symmetrical animal
  2. 2. term used by biologists for the hind end of bilaterally symmetrical animals
  3. 3. term used to refer to the top of Bilaterally symmetrical animals
  4. 6. the ability of an organism to regrow missing body parts
  5. 8. decaying organic material
  6. 10. process that allows sponges to feed
  7. 12. line drawn from end to end through the center of an organism
  8. 13. if any fish or animal tried to eat it It would be like chewing a mouthful of needles
  9. 14. a digestive organelle in which food particles are engulfed
  10. 15. organism attached to a solid surface throughout their adult life