First, Archaea bacteria were classified in the eubacteria kingdom. Later in 1970, scientists separate the bacteria into two kingdoms as Archaea-bacteria and eubacteria. Below are some of the differences that are present among archaea and Bacteria. We have made two tables for your convenience of comprehending, one table contains the similarities of archaea and bacteria and the other contain differences among the two.

Similarities:

These are some of the similarities that are present between archaea and bacteria.

Properties	Archaea	Bacteria
Cell type	Prokaryotic	Prokaryotic
Shapes	Rod, cocci, plates and coil	Rod, cocci, plates and coil
Motility	Flagella	Flagella
Size	In micrometres	In micrometres
Organelles	No membrane around organelles	No membrane around organelles
Cell division	Binary fission, fragmentation.	Binary fission, fragmentation

 

Differences:

These are some of the differences that are present among archaea and bacteria, these things differentiate between archaea and bacteria

Properties	Archaea	Bacteria
Growth	Occur in one phase	Occur in three phase
Habitat	Extreme harsh environment	Ubiquitous
Cell wall	Pseudo-peptidoglycan	Peptidoglycan
Spore formation	Can’t form spore during dormant conditions	Can form spore during dormant conditions
Flagella	Evolved from type 4 Pilli	Evolved from type 3 secretions.