Archaebacteria

Science / Biology / Archaebacteria: Ancient (over 3.5 billion years old) group of prokaryotes; some biologists want to place this group into a separate Kingdom, the Archaea. Most currently place it within the Kingdom Monera.

Monera

Science / Biology / Monera: Prokaryotic kingdom that includes (in the most widely accepted classification system) archaebacteria, eubacteria, and cyanobacteria. Members of this kingdom were among the first forms of life over 3.5 MORE

Archaea

Science / Biology / Archaea: Proposed, but not widely accepted, sixth taxonomic kingdom that would include the archaebacteria. MORE

Halophiles

Science / Biology / Halophiles: A group of archaebacteria that are able to tolerate high salt concentrations. MORE

Methanogens

Science / Biology / Methanogens: A group of archaebacteria that produce methane as a by product of their metabolism. MORE

Thermacidophiles

Science / Biology / Thermacidophiles: A group of archaebacteria that are able to tolerate high temperatures and acidic pH. MORE

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