Across
- 5. zooplankton
- 6. body of multicellular algae
- 8. emulsifier
- 9. foraminifera, radiolarian, ciliate
- 10. recyclers
- 12. composed of foraminifera ooze
- 14. not stem
- 16. kelp
- 17. green algae
- 19. unicellular protest
- 21. shapes include spheres, spirals, and rods
- 22. not roots
Down
- 1. brown algae
- 2. abrasives
- 3. glow
- 4. large mounds
- 7. leaf-like part of kelp
- 11. horns or spines to remain afloat
- 13. red algae
- 15. dense concentrations
- 18. bacteria
- 20. chemical energy