Prokaryota

Prokaryota, also known as prokaryotes, are a domain of single-celled organisms that lack a true nucleus and other membrane-bound organelles. They are one of the three domains of life, along with Archaea and Eukarya. Prokaryotes are typically smaller than eukaryotic cells, ranging from 0.1 to 10 micrometers in diameter. They are found in a wide range of environments, including soil, water, and the bodies of other organisms.

Prokaryotes are divided into two main groups: Bacteria and Archaea. Bacteria are further classified into several phyla, including Firmicutes, Proteobacteria, and Actinobacteria. Archaea, on the other hand, are classified into several phyla as well, including Euryarchaeota and Crenarchaeota. Prokaryotes reproduce asexually through processes such as binary fission, budding, and spore formation.

Prokaryotes play a crucial role in various ecosystems. They are responsible for nutrient cycling, decomposition of organic matter, and the production of many biologically important compounds. Some prokaryotes are also important in industry, such as those used in the production of antibiotics, bioplastics, and biofuels. However, some prokaryotes are also pathogenic, causing diseases in plants, animals, and humans.