Title: Archaebacteria Facts
Headings: Archaebacteria Facts
Archaebacteria Facts
Content: Archaebacteria Facts
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Archaebacteria Facts
Archaebacteria Facts
Archaebacteria is the name given to archaea when it was classified as bacteria. This classification became outdated when it was determined that archaea are actually distinct from bacteria and eukaryote, which were previously thought to be the only domains of life on earth. Archaea is very similar to bacteria in shape and in size, but some have very bizarre shapes such as square and flat. Archaea are considered to be single cell microorganisms, classified as prokaryotes because they lack a cell nucleus and organelles. Although originally thought to live in harsh environments archaea have been found in marshlands, skin, and even the human colon. Interesting Archaebacteria Facts: Archaebacteria are believed to have emerged approximately 3.5 billion years ago. The Archaebacteria kingdom is divided into three different types including methanogens, halophiles, and thermophiles. Methanogens are a type of Archaebacteria that produce methane gas, and are found in environments with no oxygen such as in lake sediment, animals' digestive tracts, and marshes. They are useful in sewages plants to breakdown the incoming sewage.