Animal Characteristics, Sponges, and Cnidarians

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Across
  1. 7. sting and paralyze prey
  2. 9. the creation of egg and sperm
  3. 11. full complete body cavity with organs
  4. 13. inner layer consists of the digestive tract
  5. 14. hairlike structures that wave about and create currents
  6. 15. outer layer consisting of skin, nervous tissue, and respiratory)
Down
  1. 1. cells that move and transport nutrients and sperm from spicules
  2. 2. small opening along with the sponge
  3. 3. division of a zygote
  4. 4. fertilized egg
  5. 5. partial body cavity, a space within the animal but no organs
  6. 6. a collection of sensory organs at the anterior end (creating a head and brain)
  7. 8. breaking off a body part which becomes a new identical cnidarian
  8. 10. no body cavity or organs
  9. 12. middle layer consisting of muscle, circulatory system, and bones