Across
- 3. level Hierarchy levels in an ecosystem, of organisms that share the same function and nutritional relationships in the food chain and the same nutritional relationship to the primary sources of energy
- 6. An organism that eats other plants or animals for energy and nutrients
- 8. A symbiosis that is beneficial to both organisms involved
- 11. A living organism that obtains its energy by eating other organisms
- 15. Not associated with living organisms, includes items such as light, temperature, wind patterns, and precipitation
- 16. consumer An organism that eats exclusively plant-based foods and is on the second level of a food chain
- 18. consumer An organism that gets its energy by eating primary consumers, which are herbivores that eat producers
- 20. A relationship between organisms that strive for the same resources in the same place
- 21. An animal that feeds on plants
- 22. A hierarchy of organisms dependent on the next as a source of food
- 24. The regions of the surface, atmosphere, and hydrosphere of the Earth occupied by living organisms
- 25. Relating to living things in ecological relations
- 27. A system of interlocking and interdependent food chains
- 28. A group of organisms of the same species that live in a specific geographic area and can interbreed
- 29. An ecological process where one organism hunts, captures, and kills another organism for food
Down
- 1. An animal that eats food of both plant and animal origins
- 2. consumer An animal that obtains its nutrition by eating primary and secondary consumers
- 4. A biological interaction where one species benefits from another species without harming or benefiting it
- 5. A group of living organisms consisting of similar individuals capable of breeding
- 7. A species on which other species in an ecosystem largely depend on, if it were removed the ecosystem would change drastically
- 9. A close, prolonged association between two or more different biological species
- 10. An organism that is able to form nutrition from simple inorganic substances such as carbon dioxide
- 12. A relationship between two organisms where one organism benefits at the expense of the other
- 13. A group of species that are commonly found together
- 14. An animal that feeds on dead organic material
- 17. A community of living organisms interacting with their nonliving physical environment within a specific area
- 19. An organism that breaks down dead organisms and releases the nutrients from the dead matter into the environment around them
- 20. An animal that feeds on flesh
- 23. A large naturally occurring community of plants and animals occupying a major habitat
- 26. Organisms that can make their own energy through biochemical processes
