Across
- 2. One line of symmetry
- 5. hairlike structures that create currents
- 8. cells that move and transport nutrients and sperm, form spicules
- 11. Egg + Sperm
- 12. Can move to find food
- 13. Wheel or spoke shaped, parts radiate out from central axis
- 14. Large opening at top to let material out
- 15. 32 or more cells w/o cavity
Down
- 1. Cells continue to divide, arranged in a single layer around a central cavity
- 3. Small opening along the sponge that lets material in
- 4. Obtains energy from outside source
- 6. No body part to create mirror image
- 7. cells that filter the nutrients using mucus
- 9. Cell that has a nucleus and other organelles
- 10. Specialization of many cells