The prokaryotes are the oldest and most abundant group of organisms on earth, and are the smallest unicellular organisms. There are certain factors that account for the success of prokaryotes such that they are able to withstand harsh environments and they are able to adapt to face the conditions that they are in. One factor that accounts for the success of the prokaryotes is their way to survive. When environmental conditions are unfavorable, the bacterium …showed first 75 words of 430 total…

…showed last 75 words of 430 total…salinity environments. They are able to this by bacteriorhodopsin, which turns their pigment pink. Thermoacidophiles need an environment that is both hot (60 to 80 degrees Celsius) and acidic (2 to 4 pH). They can withstand this because they have no cell wall and can grow aerobically and anaerobically. That is how prokaryotes are able to adapt. Prokaryotes are the oldest and most abundant group of organisms on earth because they are able to survive, adapt, and are self-sufficient.