Ecology A

3. A term that describes an organism associated with a land environment.
6. A relationship between two organisms in which one organism benefits and the other organism does not benefit or is not harmed.
7. A term that describes a nonliving factor in an ecosystem.
9. A species normally living outside a distribution range that has been introduced through either deliberate or accidental human activity; also can be known as introduced, invasive, alien, nonindigenous, or exotic.
10. Type of reproductive isolation due to individuals being active at different times of the day, seasons, or mating periods
13. The cycle of abiotic factors between the living and nonliving components within ecosystems; (i.e., water cycle, carbon cycle, oxygen cycle, and nitrogen cycle).
15. A group of individuals of the same species living in a specific geographical area and reproducing.
16. An organism that uses a primary energy source to conduct photosynthesis or chemosynthesis.
17. A series of predictable and orderly changes within an ecosystem over time.
19. An organism that obtains energy by feeding on other organisms or their remains.
21. A relationship between two organisms in which both organisms benefit

1. Living or once‐living organism in an ecosystem.
2. Relationship: A relationship between two organisms
4. Chemical or physical factor that limits the existence, growth, abundance, or distribution of an individual organism or a population.
5. An area that provides an organism with its basic needs for survival.
8. The position of an organism in relation to the flow of energy and inorganic nutrients through an ecosystem (e.g., producer, consumer, and decomposer).
11. A large area or geographical region with distinct plant and animal groups adapted to that environment.
12. An organism that obtains nutrients by consuming dead and decaying organic matter which allows nutrients to be accessible to other organisms.
14. A relationship between two organisms in which one organism benefits and the other organism is harmed.
18. A system composed of organisms and nonliving components of an environment.
20. A species that is found in its originating location and is generally restricted to that geographic area.