Across
- 2. type of cells that allow water to flow inside
- 5. larva-like Y shaped body
- 7. outside protective layer
- 10. long, flexible limbs
- 11. a new sponge grows from older ones and eventually breaks off
- 13. non-cellular jelly-like substance between 2 layers
- 17. where food enters and waste exits
- 18. tiny, hard particles that stick out of the epidermis
- 19. a group of amebocytes covered by a hard outer covering
Down
- 1. water traveling out
- 3. inside digestive layer
- 4. stinging cells
- 6. where water travels out at the top of the sponge
- 8. umbrella shaped
- 9. cell layer that is similar to a brain
- 12. circulates water through the sponge
- 14. water traveling in
- 15. the pores which water flows in
- 16. attached to some surface