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25 Cards in this Set
- Front
- Back
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Community` |
a group of various species that live in the same habitat and interact with each other |
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Ecosystem |
a community of organisms and their abiotic environment
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Habitat |
a place where an organism usually lives
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Biodiversity |
the variety of organisms in a given area, the genetic variation within a population, the variety of species in a community, or the variety of species in a community
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Succession |
the replacement of one type of community by another at a single location over a period of time
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Climate |
the average weather conditions in an area over a period of time
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Biome |
a large area characterized by a specific type of climate and certain types of plants and animal communities
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Producer |
a photosynthetic or chemosynthetic autotroph that serves as the basic food source in an ecosystem
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Consumer |
an organism that eats other organisms or organic matter instead of producing its own nutrients or obtaining nutrients from inorganic matter
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Decomposer |
an organism that feeds by breaking down organic matter from dead organisms |
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Trophic Level |
one of the steps in a food chain or food pyramid
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Energy Pyramid |
a triangular diagram that shows an ecosystem's loss of energy, which results as energy passes through the ecosystem's food chain
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Population |
a group of organisms of the same species that live in a specific geographical area and interbreed
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Coevolution |
the evolution of two or more species that is due to mutual influence |
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Parasitism |
a relationship between two species in which one species, the parasite, benefits from the other species, the host
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Symbiosis |
a relationship in which two different organisms live in close association with each other
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Mutualism |
a relationship between two species in which both species benefit
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Commensalism |
a relationship between two organisms in which one organism benefits and the other in unaffected
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Niche |
the unique position occupied by a species, both in terms of its physical use of its habitat and its function within an ecological community
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Fundamental Niche |
the largest ecological niche where an organism or species can live without competition
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Realized Niche |
the range of resources that a species uses, the conditions that the species can tolerate, and the functional roles that the species plays as a result of competition in the species fundamental niche
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Competitive Exclusion |
the exclusion of one species by another due to to competition |
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Keystone Species |
a species that is critical to the functioning of the ecosystem in which it lives because it affects the survival and abundance of many other species in its community |
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Carrying Capacity |
the largest population that an environment can support at any given time |
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Predation |
an interaction between two organisms in which one organism, the predator, kills and feeds on the other organism, the prey |
