Difficult Coral

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Across
  1. 2. The addition of new individuals to a population
  2. 4. Square frame used for sampling an area
  3. 7. Type of radiation that can damage corals and other organisms
  4. 11. Animal that feeds on plants or algae
  5. 12. Animal with a backbone
  6. 14. Act of feeding on plants or algae
  7. 16. The basic unit of a coral colony
  8. 17. Animal that feeds on both plants and animals
  9. 20. Loss of colour and symbiotic algae from corals due to stress
Down
  1. 1. Young or immature organis
  2. 3. Type of symbiosis where both organisms benefit
  3. 5. The symbiotic algae that live inside corals
  4. 6. Immature stage of an animal that undergoes metamorphosis
  5. 8. Animal without a backbone
  6. 9. Stinging cell found in cnidarians
  7. 10. Animal that feeds on other animals
  8. 13. Genus of branching corals that are dominant in many reefs
  9. 15. Close relationship between two different organisms
  10. 18. Organic matter that results from the decomposition of plants and animals
  11. 19. Community of living and non-living things that interact with each other