Across
- 2. A species that influences the survival of many other species in an ecosystem
- 4. An ecological succession that begins in an area where no biotic community previously existed
- 7. relating to water
- 15. Succession following a disturbance that destroys a community without destroying the soil
- 16. living
- 17. bottom of the ocean
- 18. relating to land
- 19. no light
Down
- 1. Portion of the shoreline that lies between the high and low tide lines
- 3. plants and animals that have migrated to places where they are not native
- 5. A stable, mature community that undergoes little or no change in species over time
- 6. non-living
- 8. a broad, regional type of ecosystem characterized by distinctive climate and soil conditions and a distinctive kind of biological community adapted to those conditions.
- 9. living thing
- 10. Portion of the marine biome that is shallow enough for sunlight to penetrate.
- 11. A biological community of interacting organisms and their physical environment.
- 12. A structure of calcite skeletons built up by coral animals in warm, shallow ocean water.
- 13. A group of individuals that belong to the same species and live in the same area
- 14. the variety of life in the world or in a particular habitat or ecosystem.
- 20. First species to populate an area during primary succession