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 becomes inactive. Some species of bacteria form endospores. An endospore is a thick wall that surrounds the genetic material while the rest of the cell disintegrates. The endospore does not reproduce or show
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