EntityQ135741· pop 9· linked from 18 articlesshadow biosphereSign in to savehypothetical microbial biosphere of Earth that would use radically different biochemical and molecular processes from that of currently known lifeConnectionsdeoxyribonucleic acidEntitymicroorganismEntityRNA world hypothesisEntityBreakthrough InitiativesEntitylifeEntitysulfurEntityphosphorusEntityarsenicEntitybiochemistryEntitymicrobiologyEntitypaleontologyEntityribonucleic acidEntityamino acidEntityWayback MachineEntityastrophysicsEntitydigital object identifierEntitybiosphereEntitymolecular biologyEntityribosomeEntityastrobiologyEntityCategoriesAstrobiologyEcologyEvolution of the biosphereHypothetical life formsPhilosophy of biology