Answer:
archaea biochemistry is more similar to that of eukaryotes than that of eubacteria.
Step-by-step explanation:
Eubacteria and Archaea are unicellular and prokaryotic both of them have a cell wall present but they lack a nucleus and membrane-bound organelles are also not present,but both of them are different evolutionary.
Archaea are more similar to eukaryotes in term of the molecular pathway than that of eubacteria.
For example, In Archaea microorganism replication of DNA and Synthesis of protein take place in the same way as it occurs in eukaryotes while it is not the same in eubacteria.
Thus the correct answer is ( 'archaean biochemistry is more similar to that of eukaryotes than that of eubacteria)'