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ecosystem
A dynamic complex of plant, animal and microorganism communities and their non-living environment all interacting as a functional unit.
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Effector
An organ or cell that acts in response to a stimulus
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Electric Current
Rate of flow of electric charge .
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Endangered
(of a species) seriously at risk of extinction
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endangered species
A species which is at risk of becoming extinct because it is either few in number, or threatened by changing environmental or predation parameters
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Evidence
Data which has been shown to be valid.
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Extinction
The act of ending the existence of a plant or animal
