Across
- 4. the ability to maintain a ecological balance
- 9. visible forms of radiant energy
- 11. the non-living physical and chemical components of an ecosystem
- 14. the form of energy transferred during heating or cooling
- 16. to describe the position of an organism along a food chain.
- 17. an ecosystem that is maintained through natural processes
- 18. an organism that makes its own energy-rich food compounds using the Sun’s energy
- 19. the zone around Earth where life can exist
Down
- 1. A chemical process in which energy is released from food
- 2. energy that travels through empty space
- 3. an organism that obtains energy from consuming other organisms
- 5. the layer of gases surrounding Earth
- 6. the process in which the Sun's energy is converted into chemical energy
- 7. organisms, each feeding on the next, showing how energy is transferred from one organism to another
- 8. all of Earth's water in solid, liquid, and gas form
- 10. all the living organisms and their physical and chemical environment
- 12. living things, their remains, and features, such as nests, associated with their activities
- 13. Earth’s solid outer layer
- 15. the function a species serves in its ecosystem,
