Across
- 4. Every living and non-living thing that surrounds an organism
- 5. A diagram showing how food energy moves through the ecosystem
- 8. A representation of many interconnected food chains that shows the feeding relationships among producers, consumers, and decomposers
- 10. The study of how living things interact with each other and with their environment
- 11. A combination of all the different populations that live and interact in the same environment
- 12. An organism that makes its own food from light energy and inorganic materials (starts with “p”)
- 14. non-living things
- 15. The variety of species in an area
- 16. Any factor in the environment that limits the size of a population
- 17. living things
- 18. All the living and non-living things that interact in a specific area; a subdivision of the environment
- 19. An organism that produces its own food; the source of energy for all other living things on Earth (starts with “a”)
Down
- 1. The larges population of any single species that an area can support
- 2. All of Earth’s ecosystems, collectively; the biologically inhabited portions of Earth, including all of the water, land, and air in which organisms survive
- 3. All the individuals of a single species that live in a specific area
- 5. The specific role played by an organism or a population of organisms in the ecosystem
- 6. An organism, generally a bacteria or fungus, that consumes dead organisms and organic waste
- 7. The process by which an existing community is replaced by another community
- 9. An organism that cannot make its own food; a consumer
- 13. The place where a plant or animal lives