Ecosystem

123456789
Across
  1. 3. ecosystem This ecosystem is found on land
  2. 5. pyramid Graphical representation of the topic levels
  3. 7. ecosystem This ecosystem includes wherever there is salt water
  4. 8. A network of interconnected food chains in an ecosystem.
  5. 9. Organisms that cannot make their own food
Down
  1. 1. cycle Carbon moves among the air; the ground, and plants/animals
  2. 2. cycle The movement of nitrogen through the environment
  3. 3. level Each feeding level in an ecosystem
  4. 4. An organism that produces its own food; also called producers
  5. 6. A biological community of interacting organisms and their physical environment