<prompt> Which organism cannot be cultured ?Klebsiella rhinoscleromatisKlebsiella ozaenaeKlebsiella granulomatisPneumocystis jiroveci  <response>: Ans. is d i.e., Pneumocytstis jiroveci The life cycle of pneumocystis probably involves sexual and asexual reproduction, although definitive proof awaits the development of a reliable culture system. - Harrison Rhinosporidium seeberi has not been cultivated in media. - Ananthnarayan. 