Across
- 4. excurrent pore of sponges
- 5. collar cells that move water with flagella
- 9. hard skeleton fibers in sponges
- 11. cells that travel distributing food and oxygen
- 12. flat surface cells
- 13. group of amebocytes with a hard resistant covering for asexual reproduction
Down
- 1. inner layer of sponges
- 2. no mirror images
- 3. cells around the pores
- 6. incurrent pores of sponges
- 7. attached to some surface
- 8. obtain food by straining water
- 9. soft protein fibers that give structure
- 10. non-living jelly like substance between 2 layers of cells