Across
- 2. Reproduction with only one parent
- 6. Method of respiration used by Porifera and Cnidarians
- 8. cells that build spicules and digest food
- 10. Brain, staghorn and star coral belong to this group of coral
- 12. Stinging cells in Cnidarians
- 16. Animals that are both male and female
- 17. Coral is made of calcium ___________
- 18. spiny structures that form the skeleton of sponges
Down
- 1. large hole in the top of the sponge
- 3. algae that forms symbiotic relationship with coral
- 4. Coral _______ happens when stressed by environmental conditions
- 5. Sea-fan, whip and plume coral belong to this group of coral
- 7. collar cells in sponges (digest food, move water)
- 9. Phylum containing jellyfish and coral
- 10. Another word for not moving
- 11. Organisms that get their energy by eating others
- 13. Phylum containing sponges
- 14. fibers of protein that make up soft sponges
- 15. Type of symmetry that is round