Across
- 5. source of energy for use and storage at the cellular level
- 8. a natural or inherent aptitude
- 9. organisms strive for the same resources in the same place
- 10. an animal that is eaten by other animals
- 12. renewable organic material that comes from plants and animals
- 13. chemical process that doesn't use oxygen to create energy
- 16. long-tern shifts in temperature and weather patterns
- 17. shows what organism is prey and predator
- 18. anything that constrains a population's size
- 19. an organism that creates its own food
- 20. a community of all the living organisms and non-living organisms
Down
- 1. chemical process that uses oxygen to create energy
- 2. the variety of all living things on Earth
- 3. essential for life
- 4. consists of all food chains in a single ecosystem
- 6. plants take in sunlight, H2O, CO2 to create energy
- 7. organisms have to get energy by eating other organisms
- 11. a place where an organism makes its home
- 14. an animal that eats other animals
- 15. organism that breaks down dead plants and animals