Ecology Vocab Review

3. An interaction between organisms or species that require the same resource
6. The study of how organisms interact with their environment and other organisms
10. Individual living things
11. Disturbances that can affect an ecosystem
13. Shifts in weather and temperature that can occur naturally or are caused by humans
14. Parts of the Earth where all life exists
16. Organisms that can make their own food
18. A relationship where one organism benefits and the other is unaffected
19. The natural environment where an organism lives and adapts to
21. When an organism preys on another
22. Nonliving parts of an ecosystem such as water, sunlight, and soil

1. Environmental changes caused by humans that affect natural environments and ecosystems
2. Introducing harmful materials into the environment
4. A relationship between two organisms where both benefit
5. The number of a species in a given area
7. An organism that obtains its energy through eating other organisms
8. Multiple interacting species that live in the same area
9. A species that plays a vital role in its ecosystem
12. Living parts of an ecosystem
14. All different kinds of life or organisms found in one area
15. Consists of abiotic and biotic factors interacting together in a given area
17. The maximum population an ecosystem can sustain
20. Where one organism benefits and the other is harmed