Ecology

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Across
  1. 4. an organism that can use photosynthesis to make its own food
  2. 6. the part of Earth where life exists
  3. 8. the total variety of organisms
  4. 9. organism that breaks down and obtains energy from dead organic matter
  5. 12. also called a heterotroph
  6. 13. a symbiotic relationship where both species benefit
  7. 14. organism that obtains energy by eating both plants and animals
  8. 15. amount of living tissue within a trophic level
Down
  1. 1. process by which plants use light energy to convert water and CO2 to sugar and oxygen
  2. 2. organism that obtains energy by eating only plants
  3. 3. organism that obtains energy by eating animals
  4. 5. needs to rely on other organism for its energy and food
  5. 7. the complete disappearance of a species
  6. 10. a symbiotic relationship where one organism benefits and the other is neither harmed or helped.
  7. 11. also called an autotroph