Answer & explanation:
The Monera kingdom is formed by cyanobacteria (photosynthetic bacteria) and archaebacteria (also called archaea), all living beings of simple structure, prokaryotic and unicellular.
However, the term "monera" is obsolete in the current classification of kingdoms. The beings that were part of the monera kingdom began to be divided between the Bacteria and Archaea kingdoms.
The Bacteria kingdom represents the largest number of species containing bacteria and cyanobacteria, while the Archaea kingdom has a smaller number of species.
Archeas are no longer classified as bacteria because they have structures that make them closer to eukaryotes (although they are prokaryotes).
Despite this new division, some more simplified books still use the term "monera".
