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22 Cards in this Set
- Front
- Back
Ecosystem
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An ecological community together with its environment, functioning as a unit.
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Food Chain
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A succession of organisms in an ecological community that constitutes a continuation of food energy from one organism to another as each consumes a lower member and in turn is preyed upon by a higher member.
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Producers
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A photosynthetic green plant or chemosynthetic bacterium, constituting the first trophic level in a food chain; an autotrophic organism.
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Consumers
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A heterotrophic organism that ingests other organisms or organic matter in a food chain.
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Herbivores
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An animal that feeds chiefly on plants.
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Carnivores
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Any of various predatory, flesh-eating mammals of the order Carnivora, including the dogs, cats, bears, weasels, hyenas, and raccoons.
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Omnivores
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strictly means one who eats all things (Latin omni: all), but is used to describe those people or communities whose diet is not restricted to either animal or vegetable sources.
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Detritus
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Disintegrated or eroded matter
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Decomposers
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An organism, often a bacterium or fungus, that feeds on and breaks down dead plant or animal matter, thus making organic nutrients available to the ecosystem.
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Habitat
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the type of environment in which an organism or group normally lives or occurs
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Extinct
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No longer existing or living
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Extirpated
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Referring to a local extinction of a species that can still be found elsewhere.
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Endangered
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In danger of extinction throughout all or a significant portion of a species' range.
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threatened
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At risk of becoming endangered. Used of a plant or an animal.
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vulnerable
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a species which is likely to become endangered
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Ecology
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he relationship between organisms and their environment.
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Abiotic
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are non-living chemical and physical factors in the environment.
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Biotic
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Of or having to do with life or living organisms.
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Population
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All the organisms that constitute a specific group or occur in a specified habitat.
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Community
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A group of plants and animals living and interacting with one another in a specific region under relatively similar environmental conditions.
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Ecotone
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A transitional zone between two communities containing the characteristic species of each.
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Biodiversity
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The number and variety of organisms found within a specified geographic region.
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