The below diagram illustrates how this module explores a way to understand and organize past and present biodiversity according to evolutionary history. This method allows you to investigate all sorts of questions regarding the evolution of archaea, bacteria, and Eukaryota. As the phylogenetic tree diagram suggests, the major components of such trees are leaves. The leaves of a tree can be species, populations, individuals, or even genes. If the tips represent a formally named group, they are called taxa (singular: taxon). Use EdrawMax Online to create the phylogenetic trees for your ongoing project.