Across
- 2. any of the pores in sponges through which water enters.
- 3. a mobile cell.
- 5. a slender pointed usually hard body.
- 6. a small bud.
- 9. attached directly by the base.
- 10. one of the large tubular cells.
- 12. a type of sponge having an oval shape.
- 14. sponge larva having a complex structure.
Down
- 1. any of the flagellated cells in sponges.
- 4. the gelatinous matrix within a sponge.
- 7. derived layer of cells covering the stem.
- 8. a scleroprotein that is the chief constituent.
- 11. a genus of calcareous sponges.
- 13. an excretory structure in the living sponge.