Biology Ecology Crossword

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Across
  1. 1. living things in an ecosystem
  2. 5. an organism that produces organic compounds from simple substances such as water and carbon dioxide; an autotroph.
  3. 8. the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.
  4. 9. each of several hierarchical levels in an ecosystem, comprising organisms that share the same function in the food chain and the same nutritional relationship to the primary sources of energy.
  5. 10. a hierarchical series of organisms each dependent on the next as a source of food.
  6. 12. a community of animals, plants, or humans among whose members interbreeding occurs.
  7. 14. an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
  8. 18. an organism that derives the organic compounds and energy it needs from the consumption of other organisms; a heterotroph.
  9. 19. a biological community of interacting organisms and their physical environment.
  10. 20. an organism that only eats meat
  11. 22. an organism who has parasites living inside of them
  12. 23. the natural home or environment of an animal, plant, or other organism.
  13. 24. an organism who eats meat and plants
Down
  1. 2. an animal that feeds on carrion, dead plant material, or refuse.
  2. 3. a system of interlocking and interdependent food chains.
  3. 4. an organism deriving its nutritional requirements from complex organic substances.
  4. 6. an individual animal, plant, or single-celled life form.
  5. 7. non-living things in an ecosystem
  6. 11. an organism that only eats plants
  7. 12. an animal that naturally preys on others.
  8. 13. an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
  9. 15. a group of interdependent organisms of different species growing or living together in a specified habitat.
  10. 16. an animal that is caught and killed by another for food.
  11. 17. the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
  12. 21. an organism that lives in or on an organism of another species (its host) and benefits by deriving nutrients at the other's expense.