ECOLOGY

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Across
  1. 2. a set of interacting or interdependent components, real or abstract, that form an integrated whole. An open system is able to interact with its environment. A closed system is isolated from its environment.
  2. 5. when individuals or groups of organisms compete for similar resources such as territory, mates, water and food in the same environment
  3. 7. a model that illustrates the biomass productivity at multiple trophic levels in a given ecosystem
  4. 8. an area that provides an organism with its basic needs for survival
  5. 10. the study of energy flow (energy transformations) into and within living systems
  6. 11. chemical or physical factor that limits the existence, growth, abundance, or distribution of an individual organism or a population
  7. 13. a complex arrangement of interrelated food chains illustrating the flow of energy between interdependent organisms
  8. 15. a species normally living outside a distribution range that has been introduced through either deliberate of accidental human activity; also can be know as introduced, invasive, alien, nonindigenous, or exotic
  9. 21. an organism that uses a primary energy source to conduct photosynthesis or chemosynthesis
  10. 22. an organism that obtains nutrients by consuming dead and decaying organic matter which allows nutrients to be accessible to other organisms
  11. 25. a term that describes an organism associated with a water environment
  12. 26. the position of an organism in relation to the flow of energy and inorganic nutrients through an ecosystem (producer, consumer, decomposer)
  13. 27. a term that describe a nonliving factor in an ecosystem
  14. 28. a system composed of organisms and nonliving components of an environment
Down
  1. 1. an organism that obtains energy by feeding on other organisms or their remains
  2. 3. different populations of organisms interacting in a shared environment
  3. 4. the movement of abiotic factors between the living and nonliving components within ecosystems; also known as nutrient cycles (water cycle, carbon cycle, oxygen cycle and nitrogen cycle)
  4. 6. a term that describes a living or once-living organism in an ecosystem
  5. 9. a large area or geographical region with distinct plant and animal groups adapted to that environment
  6. 12. a species that is found in its originating location and is generally restricted to that geographic area
  7. 14. the zone of life on Earth; sum total of all ecosystems on Earth
  8. 16. a group of individuals of the same species living in a specific geographical area and reproducing
  9. 17. a series of predictable and orderly changes within an ecosystem over time
  10. 18. a term that describes an organism associated with a land environment
  11. 19. a simplified path illustrating the passing of potential chemical energy (food) from one organism to another organism
  12. 20. the total surrounding of an organism or a group of organisms
  13. 23. the study of the relationships between organism and their interactions with the environment
  14. 24. a relationship between two organisms (mutualism, in which both species benefit; parasitism , in which one organism benefits and the other organism is harmed; and commensalism, in which one organism benefits and the other organism does not benefit or is not harmed
  15. 29. the lowest taxonomic level of biological classification consisting of organisms capable of reproduction that results in fertile offspring