Monera is a biological kingdom that consists of unicellular organisms such as bacteria, blue-green algae, and mycoplasmas. These organisms are prokaryotic, which means that they lack a nucleus and membrane-bound organelles. They reproduce asexually by binary fission and can have diverse metabolic pathways. Bacteria play an essential role in the environment as decomposers, producers, and nitrogen fixers. Blue-green algae are photosynthetic and contribute significantly to the planet's oxygen production. Mycoplasmas are parasitic and commonly infect animals and plants. The Monera kingdom is one of the five kingdoms classification system used in biology.
