Question

How are bacteria and archaea are similar?

Answer 1

Bacteria and archaea are the prokaryotes with different domains in the scientific classification because they contain similarities as well as the difference hence based on the difference they are differentiated into different domains but constitutes few similarities such as they are called as the microscopic organisms , no cell organelles etc.,

Complete answer:
-Bacteria and archaea are unicellular microorganisms. Just as bacteria archaea are the oldest organism of living. The bacteria and archaea do not contain cell nucleus or any cellular organelles like ribosomes, Golgi, plastids just as the plant or the animal cell they possess many characters significant and different from animal or the plant cells.
-Bacteria and archaea are seen in any habitat they appear very wide across ten earth, archaea is seen in very harsh conditions such as the bottom of the sea they possess the capability of living or growing in the extreme conditions as most of the bacteria.
-The Bacteria and archaea have the exemplary method of surviving without the cellular organelles and proper mechanisms for the growth.
-The chromosomes inside the cell of the archaea and bacteria contain chromosomes which are circular. Bacteria and archaea lack the nuclear membrane.
-In scientific hierarchy classify archaea comes first because they can survive all the extreme conditions and sustain to live till the end of earth.

Note: There are the lower microorganisms which have less evolved cellular mechanisms.
They contain both similarities and differences such formation DNA and RNA chromosomal mechanism and components etc., both of the organisms are microscopes which are not visible for the human naked eye. The growth and development bacteria and archaea is studied microscopically with well defined experimental conditions.