Changes

=== Taxonomy ===

=== Taxonomy ===

[[Image:Phylogenetic tree.svg|thumb|340px|A [[phylogenetic tree]] of [[evolutionary tree|all living things]], based on [[rRNA]] [[gene]] data, showing the separation of the three domains [[bacterium|bacteria]], [[archaea]], and [[eukaryote]]s as described initially by [[Carl Woese]]. Trees constructed with other genes are generally similar, although they may place some early-branching groups very differently, presumably owing to rapid rRNA evolution. The exact relationships of the three domains are still being debated.]]

A [[phylogenetic tree]] of [[evolutionary tree|all living things]], based on [[rRNA]] [[gene]] data, showing the separation of the three domains [[bacterium|bacteria]], [[archaea]], and [[eukaryote]]s as described initially by [[Carl Woese]]. Trees constructed with other genes are generally similar, although they may place some early-branching groups very differently, presumably owing to rapid rRNA evolution. The exact relationships of the three domains are still being debated.]]

Classification is the province of the disciplines of [[systematics]] and [[alpha taxonomy|taxonomy]]. Taxonomy places organisms in groups called [[taxa]], while systematics seeks to define their relationships with each other. This classification technique has evolved to reflect advances in [[cladistics]] and [[genetics]], shifting the focus from physical similarities and shared characteristics to [[phylogenetics]].

Classification is the province of the disciplines of [[systematics]] and [[alpha taxonomy|taxonomy]]. Taxonomy places organisms in groups called [[taxa]], while systematics seeks to define their relationships with each other. This classification technique has evolved to reflect advances in [[cladistics]] and [[genetics]], shifting the focus from physical similarities and shared characteristics to [[phylogenetics]].