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.
1 Eukaryotic cells have a true nucleus, bound by a double membrane. 2  Prokaryotic cells have no nucleus. 3  The purpose of the nucleus is to sequester the DNA-related functions of the big eukaryotic cell into a smaller chamber, for the purpose of increased efficiency.he difference between prokaryotic and eukaryotic cell is eukaryotic cell is inside of people, plants, and animals. The prokaryotic is a bacteria cell Study Island: Prokaryot â¦ ic cells do not have a true nucleus or membrane-bound organelles. 30 people found this useful.