The United Illuminating Company (UI) is a regional electric distribution company based in Orange, Connecticut.
Although generally not visible to the naked eye, organisms composed of prokaryotic cells still dominate the earth. Their collective mass is at least 10 times greater than the mass of all eukaryotes combined. Organisms composed of prokaryotic cells are classified into 2 main groups: archaea and bacteria. Archaea most closely resemble the first primitive cells on our planet.
Archaea are prokaryotic cells that often live in extreme environments. Bacteria are prokaryotic cells that include other bacteria including cyanobacteria. Eukarya have eukaryotic cells and are subdivided into the following Kingdoms: Protista, Fungi, Plantae, and Animalia.acteria Domain: Bacteria are prokaryotic cells that include other bacteria that are found everywhere and are the ones people are most familiar with. Eukarya Domain: Eukarya have eukaryotic cells and are subdivided into the following kingdoms: Protista, Fungi, Plantae, and Animalia.