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25 Cards in this Set
- Front
- Back
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Community |
a group of people living in the same place or having a particular characteristic in common. |
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Ecosystem |
a biological community of interacting organisms and their physical environment. |
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habitat |
the natural home or environment of an animal, plant, or other organism. |
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biodiversity |
the variety of life in the world or in a particular habitat or ecosystem. |
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succession |
a number of people or things sharing a specified characteristic and following one after the other. |
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climate |
the weather conditions prevailing in an area in general or over a long period. |
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biome |
a large naturally occurring community of flora and fauna occupying a major habitat, |
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producer |
An autotrophic organism that serves as a source of food for other organisms in a food chain. |
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consumer |
Consumers are organisms of an ecological food chain that receive energy by consuming other organisms. |
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decomposer
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organisms that break down dead or decaying organisms, and in doing so, carry out the natural process of decomposition. |
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trophic level
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the position that an organism occupies in a food chain |
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energy pyramid
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An energy pyramid is a graphical model ofenergy flow in a community |
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Population |
all the inhabitants of a particular town, area, or country. |
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carrying capacity
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the number of people, other living organisms, or crops that a region can support without environmental degradation. |
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predation
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the preying of one animal on others. |
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coevolution
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the influence of closely associated species on each other in their evolution. |
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patasitism
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one species, the parasite, benefits at the expense of the other, the host. |
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symbiosis
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nteraction between two different organisms living in close physical association, typically to the advantage of both. |
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mutualism
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symbiosis that is beneficial to both organisms involved. |
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commensalism
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an association between two organisms in which one benefits and the other derives neither benefit nor harm. |
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niche
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a certain place to live |
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fundamental niche
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viable population of a species occupies in the absence of competition from other species. |
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realized niche |
Some species are not able to occupy their entire niche because of the presence or absence of other species. |
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competitive exclusion |
the inevitable elimination from a habitat of one of two different species with identical needs for resources. |
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keystone species |
a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically. |
