Ecology- part 1

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Across
  1. 1. The percentage of light used by plants
  2. 3. The percentage of energy passed to each level of a food chain
  3. 5. Interlinked food chains are known as a food ......
  4. 7. The shape of diagrams of biomass
  5. 10. Organisms in a food chain rely on each other
  6. 11. A non-living factor
  7. 13. Feature that helps an organisms to survive
  8. 14. Eat producers
  9. 15. Animals that are killed as a food source
  10. 16. A physical adaptation of an organism
  11. 18. The ........... levels of a food chain
Down
  1. 2. Arrows in a food chain show the flow of ...........
  2. 4. Organisms that live in extreme conditions
  3. 6. How well an organism convert energy to biomass
  4. 7. Animals that hunt and kill other animals
  5. 8. Make their own food
  6. 9. An adaptation an organisms does
  7. 12. The mass of living material
  8. 16. Adaptations help organisms to do this
  9. 17. A living factor