Energy Flow in Ecosystems

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Across
  1. 3. organisms use sunlight water and carbon dioxide to make sugar and oxygen
  2. 5. direct path of energy transferred from one organism to the next as they're eaten
  3. 6. _______ cycle process carbon is cycled between atmosphere, land, water, and organisms
  4. 8. ________ succession gradual process of change and replacement of some or all species in a community
  5. 9. break down organic matter from dead organisms
  6. 11. ________ succession where an ecosystem previously existed but was disturbed and grew back
  7. 13. carbon compounds from organisms that died millions of years ago
  8. 14. ___________ cycle is movement of the element from the environment to the organism and back to the environment
  9. 15. ________succession occurs in areas that didn't previously support life such as rocks or sand dunes
Down
  1. 1. include beans peas and clover
  2. 2. each step that energy is transferred in a food chain
  3. 4. an organism that makes their own food
  4. 6. process of breaking down carbohydrates to yield energy
  5. 7. shows feeding relationships between organisms in an ecosystem
  6. 10. get their energy by eating other organisms
  7. 12. ______ cycle nitrogen is cycled between atmosphere, soil, and organisms