Biotic and Abiotic Crossword

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Across
  1. 2. a small single celled organism that cannot be seen to the human eye.
  2. 4. how many people live in an area.
  3. 7. The surrounding where plants and human live and operate.
  4. 8. Non-living things in the ecosystem.
  5. 9. Living things in the ecosystem
Down
  1. 1. resources that decrease the population.
  2. 3. largest population an area can hold without damaging the environment.
  3. 5. Organisms that feed on mold and mushrooms.
  4. 6. A superficial growth growing on decaying areas.
  5. 7. organisms that interact with the physical environment