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bio unit 2 vocab
interdependence of life/ecology: vocabulary terms
| Term | Definition |
|---|---|
| species | a group of organisms of a single type capable of reproducing fertile offspring in the natural environment |
| photosynthesis | the process in which plants convert light energy into chemical energy |
| producer | an organism that produces its own energy through photosynthesis |
| consumer | an organism that consumes other organisms in order to gain energy |
| decomposer | an organism that decomposes dead organisms in order to gain energy |
| food chain | a sequence where energy is transferred from one organism to another as they are consumed |
| food web | the many possible, interconnected web chains in an ecosystem |
| trophic level | one step in a food chain |
| biodiversity | the variety of living organisms in a place |
| population | multiple organisms of one species that live in one area |
| community | several populations of different species that live in one area |
| ecosystem | the biological community of interacting organisms and their physical environment |
| biome | a large environment characterized by various abiotic factors |
| biosphere | the parts of the surface, atmosphere, and hydrosphere occupied by living things on earth |
| biotic | any living or once living object |
| abiotic | a non-living object that never was or never will be alive |
| fossil fuels | a natural fuel formed by the remains of living organisms |
| greenhouse gases | gases in the earth's atmosphere that help trap heat |
| greenhouse effect | the process in which heat is trapped in the earth's atmosphere by greenhouse gases |
| climate change | long-term shifts in the weather or temperature of the earth |
| deforestation | purposeful clearing of forested land |
| biomagnification | the increase of pollutant concentration from one link of a food chain to the next |
| DDT | an insecticide famous for its environmental impacts |
| extinction | when an organisms no longer exists on earth |
| exponential growth | when a population grows rapidly with abundant resources |
| logistic growth | when population growth tapers off after exponential growth, reaching carrying capacity |
| carrying capacity | the number of organisms that a habitat can sustain indefinitely |
| ecosystem homeostasis | equilibrium of organisms in an ecosystem |
| immigration | when an animal establishes itself in a habitat due to its resources |
| emigration | when an animal leaves its home because the habitat is no longer ideal |
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aluo
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