Across
- 2. feeder filter food particles from water
- 3. Sponges reproduce asexually using this
- 7. both polyp and medusa form
- 10. bell shaped and mouth faces downwards
- 11. Water and waste expelled through here in sponges
- 16. eye spots that detect movement
- 18. flower animals
- 21. Have both sperm and egg cells
- 23. Porifera
- 24. used to reach out and perceive the world
- 29. water serpent animal
- 30. Movement of cells through pores
- 31. Support system of sponges
Down
- 1. Evolved after sponges
- 4. net loosely organized network of nerve cells
- 5. porifera Greek for pore bearers
- 6. No sides mirror each other
- 8. symmetry similar part arranged around a central axis
- 9. Anthozoa corals and sea anemones
- 12. cell Flagellum creates water current
- 13. another word for doesn’t move
- 14. outer layer
- 15. Cnidaria
- 17. symmetry similar parts on either side of a middle axis
- 19. inner layer
- 20. Tentacles and mouth face upwards
- 22. most primitive of all animals
- 25. contain neurotoxins
- 26. Carry nutrients to other cells
- 27. cup of animals
- 28. stinging nettle