Ecology Terms

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Across
  1. 4. – Non-living parts of an ecosystem.
  2. 6. respiration – Cells use oxygen to get energy from food.
  3. 7. – Plants use sunlight to make food.
  4. 9. ecosystem – A land ecosystem.
  5. 11. – All the water on Earth.
  6. 12. – Where all living things exist.
  7. 14. – Cells get energy without using oxygen.
  8. 18. – Total weight of living things in an area.
  9. 19. gases – Gases that trap heat in the air.
  10. 21. – A chemical needed for life.
  11. 22. ecosystem – A water ecosystem.
Down
  1. 1. – The hard outer layer of Earth.
  2. 2. – Toxins build up in an organism over time.
  3. 3. level – A group based on how organisms get energy.
  4. 5. – The air around Earth.
  5. 8. effect – Earth gets warmer from trapped heat.
  6. 10. – Living things and their environment working together.
  7. 13. ecosystem – An ecosystem that stays healthy and supports life.
  8. 15. efficiency – Energy passed from one level to the next.
  9. 16. – Living parts of an ecosystem.
  10. 17. precipitation – Acid rain caused by polluted air.
  11. 20. – Too many nutrients cause too much plant growth in water.