A new microbe has been discovered in the hot springs of Yellowstone National Park. Microscopy shows no evidence of a nuclear membrane and biochemical studies of the cell wall demonstrate the presence of pseudo-murein aka pseudo-peptidoglycan. This microbe would most likely be classified in the: Domain Eukarya, Kingdom Fungi Domain Archaea Domain Eukarya, Kingdom Viruses Domain Eukarya, Kingdom Protists Domain Bacteria