What taxon that consists of one or more orders

Taxon that consists of one or more orders is known as class. It is a combination of one or more groups of an organism or organisms recognized by taxonomists to develop a system. Although it is not expected yet a taxon is normally identified by a special title and given an appropriate ranking.

Class is a taxonomic state which is used in the biological taxonomy of all the organisms. Every class include different type of orders. Other type of orders rank in descending order of size are life, domain, kingdom, phylum, order, family, genus and species.  

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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