Across
- 4. The property to contract.
- 7. Sponge feed on it and float in water in a small form.
- 10. Stage before metamorphosis into the next life stage.
- 11. New growth occurs on sponge that will eventually detach and grow into a separate sponge.
- 16. Attached directly by its base without a stalk.
- 17. Water enters through pores bringing in food and oxygen from the water.
- 18. A fibrous protein made of collagen (more flexible).
- 20. That will find a place to attach & grow into a polyp.
- 21. Microscopic needle-like spikes that are made of Calcium carbonate (CaCO3) or silica (glass).
Down
- 1. The bottom of a body of water.
- 2. Sponge wall is folded into canals
- 3. One individual can produce both eggs and sperm.
- 5. Central opening through which water flows.
- 6. large opening at the top where excess water leaves.
- 8. Spins to create current to pull in water with food (plankton).
- 9. Make sperm & eggs in the same body.
- 12. Separate male and female bodies.
- 13. Extensively branched canal system and water exits.
- 14. It is the typical form of the jellyfish a umbrella shaped.
- 15. Vase-shaped Sponges.
- 19. Series of tiny pores all over that bring water in.
- 20. An abnormal growth of tissue that can occur in various parts of the body