7.2 Invertebrates

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Across
  1. 3. Flattened extensions on each segment of an Annelid
  2. 6. Then walled extensions of the body wall that allow for easy absorption
  3. 9. Arrangement of body parts, there is only one way to cut the body and get two identical halves
  4. 11. Polyps that lack the medusa stage
  5. 14. Jellyfish that is predominately in the medusa form
  6. 15. The back side
Down
  1. 1. Stiff and sometimes sharp bristles found on the end of parapodia
  2. 2. A long, fleshy tube used to entangle prey
  3. 4. Long cilia fused at the base like combs, that beat in waves
  4. 5. The back end
  5. 7. Live in close association with other animals and feed on their tissues, blood, or intestinal contents
  6. 8. The front end
  7. 10. Cavity throughout the body that is filled with fluid
  8. 12. Middle layer of tissues, makes muscles
  9. 13. The belly, abdomen