An organism that synthesizes its own organic molecules (food) from simple inorganic substances. (aka producer)
An organism that obtains organic food molecules by eating other organisms or substances derived from them. (aka consumer)
A consumer that eats only plants.
A consumer that eats only animals.
A consumer that eats both plants and animals.
An organism that hunts and kills other animals for food.
An organism that is killed and eaten by another organism
An organism that feeds on the bodies of dead organisms
An organism that breaks down chemicals from wastes and dead organisms, and returns important materials to the soil and water.
the progressive replacement of one community by another until a stable climax is established
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
overtime, a pond or lake may fill in with sediment and become a land ecosystem which will undergo succession
an uninhabited area that is worthless for cultivation (no life or soil present)
First species to populate an area during primary succession
10 percent rule
only 10% of energy moves from one trophic level to the next. The rest is lost as heat
The position an organism is in relation to the flow of energy through an ecosystem (e.g., producer, consumer, and decomposer).
consumer that feeds directly on producers
An organism that eats primary consumers
An organism that eats secondary consumers
An organism that eats tertiary consumers
Describes living factors in the environment.
A term that describes a nonliving factor in an ecosystem.
An environmental factor (abiotic) that restricts the size of a population
The number of different species in an area
A series of events in which one organism eats another and obtains energy.
A community of organisms where there are several interrelated food chains
An organism's particular role or job in an ecosystem. What it does, who it eats and who eats it.
A close relationship between two species that benefits at least one of the species.
A relationship between two species in which both species benefit
A relationship between two organisms in which one organism benefits and the other is unaffected
A relationship between two organisms of different species where one benefits and the other is harmed
A group of individuals that belong to the same species and live in the same area
All the different populations that live together in an area
A biological community of interacting organisms and their physical environment.
A group of ecosystems that share similar climates and typical organisms
Consists of all parts of the Earth in which life exists, including land, water, and the atmosphere.
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