Q:

What Are the Three Domains of Life?

A:

Quick Answer

The three domains of life are bacteria, eukaryota and archaea. Each of these domains classifies a wide variety of life forms. For example, animals, plants, fungi and more all fall under eukaryota.

Continue Reading
Related Videos

Full Answer

Until 1977, there were only two proposed domains of life: eubacteria and eukaryota. Carl Woese was the biologist who proposed the accepted three life form model. Each type of domain describes a different type of cell that organisms are made of. Eukaryotic cells have a nucleus that is bound by a membrane. Bacteria cells have no nuclear membrane and bacterial rRNA. Finally, prokaryotic (arhaea) cells have RNA markers and no nuclear membrane, but a different evolutionary history from bacteria.

Learn more about Biology

Related Questions

Explore