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20 Cards in this Set
- Front
- Back
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Abiotic factor |
Physical, or nonliving, factor that shapes an ecosystem |
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Biomagnification |
The increase in concentration of a substance that occurs in a food chain |
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Biotic factor |
All the living things in an ecosystem |
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Carnivore |
Organism that obtains energy by eating animals |
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Carrying capacity |
The maximum number of individuals of any species that can be supported by a particular ecosystem on a long-term basis |
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Commensalism |
A symbiotic relationship where one organism benefits while the other organism is unaffected |
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Competition |
Two or more organisms using the same limited resources, causing some organisms to be unable to access the resources |
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Consumer |
An organism that obtains energy by feeding on other organisms |
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Decomposer |
An organism that breaks down and obtains energy from dead organic matter |
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Detritivore |
Organism that feeds on plant and animal remains and other dead matter |
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Ecological pyramid |
A diagram that shows the biomass of organisms at each trophic level |
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Ecological succession |
Changes in the composition of species found in a community over time |
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Ecosystem |
A community interacting with its environment through one-way flow of energy and the cycling of materials |
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Ecosystem sustainability |
The ability of an ecosystem to return to a state of equilibrium following a disturbance |
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Food web |
Network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem |
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Herbivore |
Organism that obtains energy by eating only plants |
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Limiting factors |
Any biotic or abiotic factor that restricts the existence, numbers, reproduction, or distribution of organisms |
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Mutualism |
A symbiotic relationship between two species in which both species benefit |
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Omnivore |
Organism that obtains energy by eating both plants and animals |
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Parasitism |
A symbiotic relationship where one organism benefits while the other (host) is harmed |
