Across
- 2. a living organism that shapes its environment
- 6. an organism that can produce its own food using light, water, carbon dioxide, or other chemicals
- 8. the area and resources used by a particular species
- 10. organism that breaks down dead organic material
- 13. a relationship between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter
- 14. an organism that feeds on dead and decomposing organic matter
- 16. the evolution of a biological community's ecological structure
- 17. type of ecological succession
- 18. each species of animal or plant receives a name of two terms of which the first identifies the genus to which it belongs and the second the species itself
- 19. a group of organisms that can reproduce naturally with one another and create fertile offspring
- 20. an organism that eats plants and animals
Down
- 1. two species cannot coexist in the same ecological niche for very long without one becoming extinct or being driven out because of competition for limited resources
- 3. the role an organism plays in a community
- 4. a type of symbiotic relationship where all species involved benefit from their interactions.
- 5. every living organism within a single ecosystem or habitat
- 7. A major ecological community of organisms adapted to a particular climatic or environmental condition on a large geographic area
- 9. a substance or object in the environment required by an organism for normal growth, maintenance, and reproduction
- 11. a non-living part of an ecosystem that shapes its environment
- 12. any organism that can't make its own food
- 15. any of several living arrangements between members of two different species