All bacteria are classified as prokaryotes, and common examples include E. coli and Streptococcus. Archaea, which has similarities to bacteria, is another domain that exclusively features prokaryotes. Prokaryotes are sin... More »

Examples of Archaea include the methane-loving methanogens, the salt-dwelling halophiles, the heat-tolerant thermophiles and the cold-dwelling psychrophiles. These organisms live in the most extreme environments on Earth... More »

Archaea lack a cell nucleus and other organelles with membranes, so they are prokaryotic. They were originally believed to be a type of bacteria, the other major group of prokaryotes. More »

The two domains of prokaryotes, which are archae and bacteria, contain the common organisms of cyanobacteria, halophiles and hyperthermophiles. Prokaryotes occur in many forms, and some species are more common than other... More »

Four examples of organisms classified under the Kingdom Monera are bacteria, mycoplasms, cyanobacteria, and archae bacteria. Organisms that meet the qualifications of the kingdom Monera are called Monerans. More »

Fungi are multicellular, eukaryotic organisms, while bacteria are single-celled prokaryotes. The cells of fungi have nuclei that contain the chromosomes and other organelles, such as mitochondria and ribosomes. Bacteria ... More »

Bacteria are typically single-celled organisms called prokaryotes that may serve as digestive aids, cause disease or aid in decomposition. Unlike eukaryotes, they do not have nuclei. Bacteria contain their DNA and other ... More »