Unit 3 Ecology Part 1

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Across
  1. 1. only about 10 percent of energy stored as biomass in a trophic level is passed from one level to the next
  2. 4. the natural home or environment of an animal, plant, or other organism
  3. 7. any kind of green plant.
  4. 8. an organism that primarily obtains food by the killing and consuming of other organisms
  5. 9. is an organism that causes ecological or economic harm in a new environment where it is not native
  6. 10. is the inherent inclination of a living organism towards a particular complex behavior, containing both innate (inborn) and learned elements
  7. 11. organisms that predators kill for food
  8. 13. is a non-living part of an ecosystem that shapes its environment
  9. 14. a system of interlocking and interdependent food chains
  10. 15. series of organisms each dependent on the next as a source of food
  11. 16. step in a nutritive series, or food chain, of an ecosystem
  12. 17. a biological community of interacting organisms and their physical environment
  13. 18. is a living organism that shapes its environment
  14. 20. is a graphical representation of the energy found within the trophic levels of an ecosystem
Down
  1. 2. is anything that constrains a population's size and slows or stops it from growing
  2. 3. an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material
  3. 5. a species' average population size in a particular habitat
  4. 6. the direct or indirect interaction of organisms that leads to a change in fitness when the organisms share the same resource
  5. 12. occurs when animals are exposed to the same stimuli repeatedly, and eventually stop responding to that stimulus
  6. 19. pertains to any of the organisms in most trophic levels in a food chain, except for producers and decomposers