Zoology

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Across
  1. 2. The phylum that contains jellyfish.
  2. 3. When an organism has two germ layers.
  3. 7. The body plan in which tentacles hang down from the body
  4. 8. The type of worm responsible for elephantiasis.
  5. 12. This class of mollusks uses jet propulsion for locomotion.
  6. 13. The phylum that contains segmented worms.
  7. 14. The hole at the top of a sponge that allows for filter feeding.
  8. 15. The body plan in which tentacles point up from the body
  9. 16. Where the food is ground for digestion in a worm.
Down
  1. 1. This determines the direction of the shell coil in snails.
  2. 4. An animal that reproduces without fertilization.
  3. 5. An organism that consumes other organisms in a food chain
  4. 6. The muscular foot is modified to this in cephalopods.
  5. 9. The tongue with rows of chitinous teeth in mollusks.
  6. 10. The type of cells that remove waste in flatworms.
  7. 11. The part of a mollusk that secretes the calcium shell
  8. 15. The phylum that contains sponges.