click below
click below
Normal Size Small Size show me how
Ecology Terms
| Term | Definition |
|---|---|
| Abiotic | An environmental factor that is not associated with the activities of living organisms. biogeochemical cycle |
| Biotic | An environmental factor that is associated with or results from the activities of living organisms. |
| carbon cycle | The movement of carbon from the nonliving environment into living things and back |
| Commensalism | A relationship between two organisms in which one organism benefits and the other is unaffected. |
| Competition | Ecological relationships in which two or more organisms depend on the same limited resource. |
| Consumer | an organism that eats other organisms or organic matter. |
| Decomposer | An organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients. |
| Ecology | The study of the interactions of living organisms with one another and with their environment. |
| ecosystem | The communities of organisms and their abiotic, or nonliving environment. |
| energy pyramid | A triangular diagram that shows an ecosystem's loss of energy, which results as energy passes through the ecosystem's food chain; |
| food chain: | The pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms. |
| food web | The diagram that shows the feeding relationships between organisms in an ecosystem. |
| limiting factor | An environmental factor that prevents an organism or population from reaching it's full potential of size or activity. |
| Mutualism | A relationship between two species in which both species benefit. |
| Parasitism | A relationship between two species in which one species, the parasite, benefits from the other species, the hoist, which is harmed |
| Predator | An organism that kills and eats all or part of another organism. |
| prey | an organism that is killed and eaten by another organism |
| Producer | an organism that can make it's own food by using energy from it's surroundings. secondary consumer |
| Symbiosis | a relationship in which two different organisms live in close association with each other. |
| water cycle | The continuous movement of water between the atmosphere, the land, the oceans, and living things. |