Unit 2 vocabulary

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Across
  1. 1. The amount of organisms in an area
  2. 5. A substance that provides nourishment
  3. 8. carnivore at the top of the food chain
  4. 9. A sugar that is an energy source in living organisms
  5. 10. The ability to do work
  6. 12. A thing that consumes something
  7. 13. An organism that produces its own food
  8. 16. Decayed organic material
  9. 18. A process that plants use to turn sunlight into food
  10. 19. A system of interlocking food chains
  11. 20. Light energy
  12. 21. A model of energy that shows how energy flows in an ecosystem
Down
  1. 2. A chemical compound that contains at least one atom of carbon
  2. 3. Herbivore
  3. 4. Energy stored in chemical compounds
  4. 6. Organism that feeds on dead organisms
  5. 7. carnivore or omnivore at the middle of a food chain
  6. 11. An organism that decomposes organic material
  7. 14. A substance that possesses mass
  8. 15. The process of rotting
  9. 17. A series of organisms each dependent on each other as a source of energy
  10. 22. Rotting through the action of bacteria and fungi