Thread: Longest lived empires/states in history. 1 out of 1 members found this post helpful. Many lists have been written about the most long-lived empires or states in the history of mankind and oddly enough nobody seems to agree on the ranking.
E. coli is a Gram-negative (bacteria which do not retain crystal violet dye), facultative anaerobic (that makes ATP by aerobic respiration if oxygen is present, but is capable of switching to fermentation or anaerobic respiration if oxygen is absent) and nonsporulating bacterium.
Escherichia coli (including E. coli 0157:H7) are gram-negative bacteria that are rod-shaped, have the ability to survive in aerobic and anaerobic environments (termed a facultative anaerobe), and may or may not produce flagella and pili (thin hair-like projections) depending on their environmental needs.