Question

Do archaebacteria have a cell wall?

Answer 1

A cell wall is a structural layer found just outside the cell membrane that surrounds some types of cells. It can be tough, flexible, and even rigid at times. It acts as a filtering mechanism as well as providing structural support and protection to the cell.

Complete answer:
Archaea are single-celled organisms that belong to the Archaea domain. Prokaryotes are microorganisms that do not have cell nuclei. Archaea were once classified as bacteria and given the name archaebacteria (from the Archaebacteria kingdom), but this term has since become obsolete.
Archaeal cells have distinct characteristics that distinguish them from Bacteria and Eukarya. Archaea are further subdivided into several distinct phyla. Because most have not been isolated in a laboratory and have only been detected in environmental samples by their gene sequences, classification is difficult.
Archaebacteria do have a cell wall. This cell wall allows them to survive in the harshest conditions, such as subzero temperatures or the scorching heat of the sun in African deserts. Archaeal cells have distinct characteristics that distinguish them from Bacteria and Eukarya. Archaea are further subdivided into several distinct phyla. Because most have not been isolated in a laboratory and have only been detected in environmental samples by their gene sequences, classification is difficult.

Thus, archaebacteria have a cell wall.

Note:
Cilia, which are small hair-like structures, or flagella, which is a tail-like whip at one end of the Archaebacteria that provides a sense of direction, help Archaebacteria move. Two flagella are found in some Archaebacteria. Archaebacteria is thought to play a significant role in the nitrogen and carbon cycles on Earth.