According to the five-kingdom system of classification, bacteria and…

Concept

The five-kingdom system separates organisms mainly by cell type, level of organization, and mode of nutrition.

Kingdom Monera contains prokaryotic organisms, whose cells lack a membrane-bound nucleus and membrane-bound organelles.

Application

Bacteria are prokaryotes. Blue-green algae are cyanobacteria and are also prokaryotic; therefore, both are placed in Monera in this classification.

Contrast

• Plantae contains primarily multicellular, photosynthetic eukaryotes, not prokaryotic bacteria.

• Protista contains mainly unicellular eukaryotes, whereas bacteria and cyanobacteria are prokaryotic.

• Fungi contains eukaryotic, absorptive heterotrophs with chitinous cell walls, not bacteria or cyanobacteria.

Cross-check

the defining feature shared by bacteria and cyanobacteria is prokaryotic cell organization, which matches Monera.

Thus, the required kingdom is Monera.