The science of identification and classification is called?

Taxonomy is the field of biology which deals with the nomenclature, identification, and classification of organisms. There are over one million known species on Earth and probably several million more not yet identified. Taxonomists are responsible for identifying, naming, and classifying all these different species.

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poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

preservation because he preserves part of the land and preserves means save

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