Across
- 4. A group of organisms and their physical surroundings
- 5. Shows many possible feeding relationships in an ecosystem
- 6. organisms that get their energy by eating other organisms
- 8. The protection and wise use of natural
- 9. The source of energy for all ecosystems
- 11. Each step through which energy is transferred in a food chain
- 12. A condition in the environment that may cause a change in the population
- 14. An organism that is in danger of becoming extinct
- 17. Shows how energy is lost from one trophic level to the next
- 18. The role or job of an organism
- 19. A sequence in which energy is transferred from one organism to the next as each organism eats another
- 21. Consumer that consumes both plants and animals
- 23. organism that makes its own food
- 24. Organism that consumes only meat
- 25. The nonliving parts of an ecosystem
Down
- 1. The study of living organisms and the environment in which they live
- 2. Consumer that only consumes plants
- 3. All the organisms (of different populations) in an area
- 6. Gas given off when animals breathe and used by plants in photosynthesis
- 7. The members of one species in a particular area
- 10. Gas given off by plants and required by animals to respire
- 13. Where an organism is found in an ecosystem; it's home
- 15. Consumer that get their own food by breaking down dead organisms
- 16. The living factors of an ecosystem
- 20. A group of ecosystems with similar climates and organisms
- 22. An animal no longer found on Earth