Across
- 4. Highest point where waves break
- 5. Reefs directly bordering island shorelines
- 11. Reef-building corals with symbiotic algae
- 15. Shallow flat behind reef crest
- 16. Sloping outer face of reef
- 17. Tiny grazers consuming reef algae
- 19. Small skeletal elements within corals
- 20. Long tentacles used for defense
- 22. Small sandy islands atop reefs
- 23. Organisms optionally engaging in relationships
- 24. Loss of symbiotic algae, whitening
- 25. Larval supply determines population patterns
Down
- 1. Post-settlement survival shapes population structure
- 2. Species requiring symbiosis for survival
- 3. Digestive filaments inside coral polyps
- 6. Alternating coral ridges and channels
- 7. Elevated ridge of coralline algae
- 8. Sheltered water body within reefs
- 9. Side facing prevailing winds, waves
- 10. Outer slope facing open ocean
- 12. Sheltered side away from winds
- 13. Non-reef-building corals lacking symbiotic algae
- 14. Biological breakdown of reef structures
- 18. Inner slope behind reef crest
- 21. Free-swimming coral larval stage organism