Dynamic Ecosystems

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Across
  1. 3. a top predator in an ecosystem
  2. 4. an organism that breaks down organic waste
  3. 6. a simple diagram that shows how energy moves in an ecosystem, a food ____
  4. 7. arrows in a food chain represent ____ transfer
  5. 10. a consumer that feeds on producers
  6. 11. a network of interconnected food chains is called a food ___
  7. 12. in Robert Paine's experiment, this species took over the tide pools when the keystone was removed
  8. 13. a consumer that feeds on secondary consumers
Down
  1. 1. a consumer that feeds on primary consumers
  2. 2. species with a very large impact on its ecosystem
  3. 5. a nonnative species that spreads uncontrollably
  4. 8. Organism that uses light or chemical energy to make food, typically plants
  5. 9. scientist who coined the term keystone species