Answer:
Eubacteria have cell walls made up of
chains of peptidoglycan.
Step-by-step explanation:
Eubacteria have cell walls that cell wall composed of cross-linked chains of peptidoglycan. The peptidoglylcan is a polymer that combines both amino acid and sugar chains. Eubacteria have peptidoglylcan in their cell walls because it's play structural role in them , giving strength and rigidity, counteracting the osmotic pressure of the cytoplasm and also help during binary fission in reproduction.