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Ecology Words
Unit Test Review of terms
| Term | Definition |
|---|---|
| Biotic Factors | Living plants and animls |
| Abiotic Factors | Nonliving components like wind and water |
| Organism | a single individual |
| Atom | smallest level of organization, not living |
| Cell | Made of organelles smallest living level |
| Population | Group of a single species in an area |
| Community | All the plants and animals in an area (biotic) |
| Ecosystem | All the living and nonliving factors in an area |
| Biosphere | The living parts of the Earth |
| Climax Community | The stable ecosystem found after succession |
| Biome | Several ecosystems with similar weather conditions |
| Limiting Factor | Anything that limits what organisms or how many organisms live in an area |
| Tolerance | An organisms ability to survive changes |
| Adaptations | Traits an organism has to make them better fit to their environment |
| Primary Succession | The changes an area takes after being disrupted. Starts with bare rock. |
| Secondary Succession | The changes an area takes after being disrupted. Starts with soil. |
| Pioneer Species | The first species that grows in an area |
| Biodiversity | Having a large variety of different organisms in an area. |
| Trophic level | Feeding steps in a food chain |
| Producer/ Autotroph | Makes its own food |
| Consumer/ Heterotroph | Eats for energy |
| Primary Consumer | Eats Plants |
| Secondary Consumer | Organism that eats a primary consumer |
| Food Chain | Simple path of the transfer of energy. Starts with a plant, arrows point to the consumer. |
| Food Web | All the possible feeding relationships |
| Ecological Pyramid | Shows the transfer of energy in an ecosystem. 10% of energy transfer up and plants are always at the bottom. |
| Symbiosis | Permanent relationship between 2 different species |
| Mutualism | Both species are happy |
| Commensalism | One Happy, One Nothing |
| Parasitism | One Happy, One Sad (Injury) |
| Competition | Both organisms fighting over a resource |
| Predation | One organism hunts the other eaten |
| Carrying Capacity | The maximum number of organisms an area can support. (has enough resources) |