Across
- 3. Eats other organisms for energy.
- 5. The zone where life can exist.
- 8. Visible form of radiant energy.
- 9. Makes its own food.
- 13. Representation of feeding relationships in a community.
- 15. The layer of gases surrounding Earth.
- 16. The mass of living organisms in a given area.
- 19. The process by which sugar is converted to a form of energy a cell can use.
- 21. The biogeochemical cycle that is impacted by the burning of fossil fuels.
- 22. Earth's solid outer layer
Down
- 1. The land area drained by a particular river.
- 2. All living organisms and their physical and chemical environment.
- 4. A factor including living things and their remains.
- 6. An ecosystem that is maintained through natural processes.
- 7. All of Earth’s water.
- 9. Process by which the Sun’s energy is converted to chemical energy.
- 10. Sequence of organisms showing energy transfer.
- 11. Form of energy transferred during heating of cooling.
- 12. The job or function of an organism.
- 14. The cycle showing the movement of water through ecosystems.
- 17. A large geographical region defined by climate
- 18. An important biogeochemical cycle.
- 19. capacity The maximum number of species a given ecosystem can sustain.
- 20. The non-living components of an ecosystem.