Practice question

According to the NCERT Class 11 Biology text, Archaebacteria differ from other bacteria (eubacteria) primarily in having a completely different cell wall structure. Their cell wall lacks typical peptidoglycan and has unique lipids. This distinct structural feature is directly responsible for their remarkable ability to survive in some of the harshest habitats on Earth, such as extreme salty areas (halophiles), hot springs (thermoacidophiles), and marshy areas (methanogens).