The grouping Archaea is which of the following in the modern

The grouping Archaea is which of the following in the modern taxonomic hierarchy?

A - Species

B - Phylum

C - Kingdom

D - Domain

Solution

D- domain
According to the three domain classification, archaea constitutes a domain- a domain can consist of kingdoms; it is the highest taxonomic rank in taxonomic hierarchy.

According to an older classification of six kingdoms, archaebacteria was classified as a kingdom, but the new classification by Carl Woose differentiates archae from bacteria and considers archaea as a domain.