The primary difference is the presence or absence of a nucleus.

Bacteria is known for its incredible diversity and is the most abundant form of life on Earth.

Carl Woese proposed the three-domain system of classification.

Peptidoglycan makes up the cell wall of bacteria.

Halophiles are organisms that thrive in high salt concentrations.

Eukaryotic cells have a nucleus and membrane-bound organelles.

Prokaryotic cells have circular DNA that is not enclosed in a nucleus.

An example of a eukaryotic organism is a human.

Peptidoglycan provides structural support and protection to bacterial cells.

The three domains of life are Bacteria, Archaea, and Eukarya.