archaea

All Noun
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  • There are four types of cell wall currently known among the Archaea.
  • This is a relatively wide range when compared to other archaea.
  • So far, the Archaea have been further divided into four recognized phyla.
  • The growing amount of supporting data led the scientific community to accept the Archaea by the mid-1980s.
  • By the end of the 20th century, archaea had been identified in non-extreme environments as well.
  • The archaea and eukaryotes are more closely related to each other than either is to the bacteria.
  • It is also produced by some other bacteria and archaea.
  • This relationship allows the virus to replicate inside the archaea without being destroyed by the environment.
  • The differences between archaea pointed to the importance of RNA in the early history of life.
  • One notable exception found comes from archaea, where two Sulfolobus species have been shown to contain three replicons.
  • This practice is similar to that of other Archaea and, indeed, that of bacteria.
  • Archaea exhibit a great variety of chemical reactions in their metabolism and use many sources of energy.
  • Archaea and bacteria have generally similar cell structure, but cell composition and organization set the archaea apart.
  • Other groups of archaea use sunlight as a source of energy (they are phototrophs).
  • Smaller independent pieces of DNA, called plasmids, are also found in archaea.
  • Although not truly unique, the cell walls of Archaea are unusual.
  • It is similar to and probably originated from bacteriorhodopsin (see below under archaea).
  • In these locations, chemosynthetic archaea and bacteria typically form the base of the food chain.
  • Archaea were originally described in extreme environments, such as hot springs, but have since been found in all types of habitats.
  • In this way many archaea and bacteria can swap DNA with each other.
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