blueback matrix asessment

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Across
  1. 1. consist of all food chains in on ecosystem
  2. 3. a hard stony substance secreted by certain marine coelenterates as an external skeleton, typically forming large reefs in warm seas
  3. 5. the plant and animal life of a particular region or period.
  4. 6. the action or process of depositing sediment
  5. 7. plants animals and other organisms work together to create a bubble of life.
  6. 10. the saltiness or amount of salt dissolved in a body of water
Down
  1. 1. one organism eat another organism
  2. 2. place or environment where a plant or animal naturally or normally lives and grows.
  3. 4. all the kinds of life you can find in one. area, the extent or measurement of a surface or piece of land.
  4. 8. the base on which an organism lives or over which it moves
  5. 9. an area classified according to the species that live in that location.