41. So far, the Archaea have been further divided into four recognized phyla. 42. AOR is found in hyperthermophillic archaea , Pyrococcus furiosus. 43. Many scientists have held to the belief that archaea are a type of procarya. 44. They sampled biofilms surrounding the fissures and discovered numerous species of bacteria and archaea . 45. Selenoproteins exist in all major forms of life, eukaryotes, bacteria and archaea . 46. "' Nitrification "'is the biological autotrophic bacteria and archaea . 47. Several proteins from prokaryotes and archaea are also modified by N-terminal acetylation. 48. Restriction enzymes are endonucleases from eubacteria and archaea that recognize a specific DNA sequence. 49. These lipids may be unrecognized metabolites from Archaea . 50. Also, do you know the Archaea story?