What is an Ecosystem Pg. 234-236

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Across
  1. 2. Plants get their energy from here.
  2. 5. These are in a forest ecosystem.
  3. 8. This provides matter and energy.
  4. 11. Ecologists study how organisms and nonliving things do this.
  5. 12. A closed ecosystem.
  6. 13. Plants make this through photosynthesis.
  7. 14. Another word for matter is this.
Down
  1. 1. Organisms interact with this environment.
  2. 3. An ecosystem with fish, snails and plants.
  3. 4. Ecologists study these.
  4. 6. Energy for most ecosystems comes from here.
  5. 7. An ecosystem is a community of these.
  6. 9. Organisms use energy to do this.
  7. 10. This is a nonliving factor in an environment.