ecology crossword puzzle

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Across
  1. 2. the study of relationships between different forms of animals and their natural surroundings
  2. 8. when living things depend on each other for survival
  3. 11. a biological community of interacting organisms and their physical environment
Down
  1. 1. an animal that only eats meat
  2. 3. an animal that eats both plants and meat
  3. 4. eats prey
  4. 5. eaten by predators
  5. 6. an animal that only eats plants
  6. 7. a graphical representation of the energy found within the trophic levels of an ecosystem
  7. 9. a relationship where both organisms benefit from their interaction with each other
  8. 10. illustrate the interactions between several different chains in the ecosystem