Question

4.

Answer 1

Answer:

The three domain classification of a living organisms has separated and placed bacteria and archaea in two different kingdoms.

Explanation:

It is because, despite both being prokaryotes, bacteria, as well as archea, exhibit the following dissimilarities:

• The cell membrane of bacteria has peptidoglycan, whereas it is absent in archaea.
• The histone proteins are present in archaea and absent in bacteria.
• The enzyme RNA polymerase is present in more numbers in archaea than bacteria.