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Species diminishing (or those that have already deleted) in result of the environmental impact or which flees the community of the cultivated plants.

a situation occurred at a particular site as a result of an accident, a hazardous natural phenomenon, a catastrophe, a natural or other disaster, which might result, or h

A maximum tolerance level of lead in human bloodstream can be considered as an example of biological standard. The advantage of a biological standard's application as a c

– accumulation of a substance by an animal which preys on other animals that have themselves already accumulated such substance in its tissue. This process can bring to a