Across
- 2. animal that gets hunted
- 8. many connected food chains
- 11. event that changes over time
- 12. living and nonliving things
- 13. living part of environment
- 14. ecosystem slowly changes over time
- 16. shows energy at each level
- 17. nonliving part of environment
- 18. breaks down dead organisms
- 19. organisms fighting for resources
- 21. many different living things
Down
- 1. plants make food using energy
- 3. different species in one area
- 4. cells release energy from food
- 5. same species in on area
- 6. animal that hunts others
- 7. animal that eat plants
- 9. close relationship between species
- 10. natural home is damaged or lost
- 15. makes its own food
- 19. eats other organisms
- 20. same kind of organism