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Terms in this set (32)
One living thing.
A group of the same species living in the same area.
A group of populations in the same area.
Living factors in an ecosystem.
Non-living factors in an ecosystem.
All the living and non living things in a given area.
An organism that make its own food from sunlight, water, and carbon dioxide.
An organism that needs to eat other organisms to get energy.
Organisms that obtain food by feeding on dead or decaying organisms.
A type of consumer that just eats producers.
A type of consumer that just eats other consumers.
A type of consumer that eats producers and consumers.
An organism that eats a producer.
An organism that eats a primary consumer.
An organism that eats a secondary consumer.
A type of consumer that breaks down dead organisms and returns the nutrients back to the ecosystem.
A type of consumer that only eats dead animals.
A close relationship of mutual dependence.
A type of symbiosis where one organism benefits and the other organism is harmed.
A type of symbiosis where one organism benefits and the other organism is unaffected.
A type of symbiosis where both organisms benefit.
Shows the path of energy from a producer, through consumers, and back to the producer using a decomposer.
Shows how all organisms are connected and also shows how energy moves within a community. More complicated than a food chain.
The amount of living things at an energy level.
Shows that the most energy and biomass belongs to the producers, at the bottom of the pyramid. The least amount of energy and least biomass belongs to the consumers at the top.
Organism's role, or job, in its habitat.
Species competing for resources
Each step in a food chain or food web.
An ecological succession that begins in an area where no biotic community previously existed.
Succession following a disturbance that destroys a community without destroying the soil.
First species to populate an area during primary succession.
A stable, mature community that undergoes little or no change in species over time.
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