Ecology Crossword Puzzle

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Across
  1. 3. the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water
  2. 6. non-living component of an ecosystem
  3. 7. A single living organism
  4. 10. two individuals compete for the same resource
  5. 11. respiration The process of converting glucose into a form of energy that is usable by cells.
  6. 13. chain A food chain is a linear network of links starting from producer organisms and ending at an apex predator species, or decomposer species.
  7. 15. one individual lives on or feeds on a host organism
  8. 17. dead organic substances are broken down into simpler organic or inorganic matter
  9. 19. A living thing made up of 1+ cells
  10. 20. two individuals benefiting from eachother
  11. 21. species Species that helps maintain an ecosystem, without it, the ecosystem changes
  12. 22. web a system of interlocking and interdependent food chains
Down
  1. 1. The variety of life in an ecosystem
  2. 2. an organism that creates organic compounds from simple substances such as water and carbon dioxide
  3. 4. level Level in a food chain
  4. 5. All the living organisms in an area that interact
  5. 8. Living component of an ecosystem
  6. 9. one individual feeds on another
  7. 10. Cycle Cycle that makes up carbohydrates, nucleic acids, and lipids
  8. 12. one individual benefits and the other neither benefits or is harmed
  9. 14. cascade (top down control) Predators keep prey populatiosn in check by eating them when the population increases too much
  10. 16. cycle the series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation and decomposition.
  11. 18. a group of organisms in a given area that interbreeds