<p><strong>Fig. 2.5.</strong> Diagram of evolutionary tree of life showing three domains: Bacteria, Archaea, and Eukaryota. Bacteria and Archaea species (shown in blue and red, respectively) are considered prokaryotic. Species in the domain Eukaryota (sometimes “Eukarya;” show in brown) are considered eukaryotic.</p>

Fig. 2.5. Diagram of evolutionary tree of life showing three domains: Bacteria, Archaea, and Eukaryota. Bacteria and Archaea species (shown in blue and red, respectively) are considered prokaryotic. Species in the domain Eukaryota (sometimes “Eukarya;” show in brown) are considered eukaryotic.

Image courtesy of National Aeronautics and Space Administration (NASA), modified by David Lin