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Ecology Vocabulary 1
Ecology Vocabulary Part 1
| Term | Definition |
|---|---|
| Abiotic Factors | The nonliving factors in an ecosystem; Climate, light, soil, water |
| Community | A collection of populations that interact with each other in a given area |
| Biosphere | Includes all organisms and the environments in which they live |
| Biotic Factors | All of the living organisms in an ecosystem; Plants, animals, bacteria |
| Ecosystem | All biotic and abiotic factors in a given area |
| Habitat | The physical area in which an organism lives |
| Niche | The role or position of an organism in its environment |
| Organism | Anything that has or once had all of the characteristics of life |
| Population | All of the oganisms in the same species in a given area |
| Biomass | The total mass of living matter at each trophic level |
| Carbon Cycle | The circulation of carbon atoms in the biosphere as a result of photosynthetic conversion of carbon dioxide into complex organic compounds by plants, which are consumed by other organisms |
| Carnivore | A heterotrph that preys on other heterotrophs |
| Commensalism | A symbiotic relationship in which one organism benefits and the other organism is neither helped nor harmed |
| Consumers | An organism that generally obtains food by feeding on other organisms or organic matter due to lack of the ability to manufacture own food from inorganic sources |
| Decomposers | Organisms that feed on dead bodies of animals and plants or on their waste products |
| Food Chain | A simple diagram that shows how energy and matter flow through an ecosystem |
| Food Web | A more complex, interconnected system of food chains |
| Herbivore | A heterotroph that eats only plants |
| Mutualism | A symbiotic relationship in which both organisms benefit |
| Nitrogen Cycle | The environmental circulation of nitrogen, which passes through the food chain, the soil and the open air environment |
| Omnivore | A heterotroph that consumes both plants and animals |
| Parasitism | A symbiotic relationship in which one organism benefits at the expense of another organism |
| Phosphorus Cycle | The movement of phosphorous through the lithosphere, hydrosphere, and biosphere |
| Producers | An organism that manufactures its own nutrients |
| Ecological Pyramids | A graphical representation in the shape of a pyramid to show the feeding relationship of groups of organisms, and the flow of energy or biomass through the different trophic levels in a given ecosystem |
| Symbiosis | A close ecological relationship between the individuals of two (or more) different species |
| Trophic Level | Each step in a food chain or a food web |
| Water Cycle | The continuous transfer of water from air, sea land and water in a continuous cycle |