Ecology

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Across
  1. 3. all the members of a species living in an area
  2. 6. Trap used for insects
  3. 7. Non-living factors
  4. 8. organisms that make their own food
  5. 9. The removal of gases from the atmosphere by organisms
  6. 10. The wise management of our natural resources
  7. 12. Factors involving the weather that effect life
  8. 13. no. of species arranged in a hierarchy
Down
  1. 1. A feature that helps an organism to survive
  2. 2. The part of the earth that sustains life
  3. 3. Plants are these
  4. 4. The functional role of an organism in its environment
  5. 5. The catching and killing of organisms
  6. 10. competition involving a physical fight
  7. 11. energy or feeding levels in an ecosystem
  8. 13. an unwanted addition to the environment