Scarlet-Ecosystems

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Across
  1. 3. The branch of biology that studies the relationships between organisms and their environments
  2. 4. The relationship between predator and prey
  3. 7. A relationship in which one organism benefits while the other is not harmed or benefited
  4. 9. The surrounding area of an organisms habitat
Down
  1. 1. Non-living components of an environment
  2. 2. The different levels in a food chain, web or pyramid
  3. 5. Living components of an environment
  4. 6. The main source of hydration for all organisms
  5. 8. A relationship between two organisms in which neither benefit of are harmed
  6. 9. Relying on external heat