Gaurav11 Years agoHello StudentArchaebacteria : Differs from bacteria having different cell wall structure. They live in most harsh habitats Halophiles(salt-loving) Thermophiles(in hot springs) Acidophiles(high acidic condition) Methanogen(marshy area)Eubacteria : Called true bacteria having a rigid cell wall, and if motile a flagellum. They also known as blue green algae orCyanobacteria. Cyanobacteria arephotosynthetic autotrophs. Unicellular, colonial or filamentous, marine and terrestrial algae. Colonies are surrounded bygelatinous sheath.