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chp 5 vocab
Term | Definition |
---|---|
organism | an individual animal, plant, or single-celled life form. |
habitat | the natural home or environment of an animal, plant, or other organism. |
biotic factor | a living thing, as an animal or plant, that influences or affects an ecosystem |
abiotic factor | a nonliving condition or thing, as climate or habitat, that influences or affects an ecosystem and the organisms in it |
population | all the inhabitants of a particular town, area, or country. |
community | a group of people living in the same place or having a particular characteristic in common. |
ecosystem | a biological community of interacting organisms and their physical environment. |
limiting factor | the factor that limits the reaction rate in any physiological process governed by many variables. |
producer | a person, company, or country that makes, grows, or supplies goods or commodities for sale. |
consumer | a person who purchases goods and services for personal use. |
decomposer | an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material. |
food chain | a hierarchical series of organisms each dependent on the next as a source of food. |
food web | a system of interlocking and interdependent food chains. |
energy pyramid | a graphical representation, showing the flow of energy at each trophic level in an ecosystem. The width of each bar represents the units of energy available within each trophic level |
succession | a number of people or things sharing a specified characteristic and following one after the other. |
pioneer species | The Pioneer species are hardy species which are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been disrupted, such as by fire |