Across
- 2. name for all organisms
- 4. a fibrous protein made of collagen
- 7. one of two principle forms
- 8. simplest body form, are
- 9. one place
- 10. line the radial canals to move water
- 11. most common type of sponge
- 13. asexual reproduction
- 16. central opening through which water flows
- 17. large opening at the top where excess water leaves
- 21. common type of sponge
- 22. both male and female reproductive organs
- 23. current to pull in water with food
Down
- 1. sharp pointed body or part
- 3. series of tiny pores all over that bring water in
- 5. free swimming or crawling larval
- 6. both male and female reproductive organs
- 9. sponge wall is folded into canals
- 12. producing contraction
- 14. produce male or females gametes
- 15. one of twp principle forms( jellyfish)
- 18. metamorphosis
- 19. randomly strained from water
- 20. seafloor