Cladistics Cladistics: classification based on common ancestry Phylogenetics: study of evolutionary relatedness among groups of organisms using molecular biology (DNA) and morphology (form and structure)

In classifying organisms, biologists try to reflect on: A diagram that shows hypothesized evolutionary relationships is called a: or a CLADOGRAM evolutionary relationships among species. phylogenetic tree

Molecular biology and computer technology innovations have resulted in an upgrade in phylogenics called cladistics. Cladistics is based on molecular biology as well as: Cladistics tries to trace To show these relationships, taxonomists use cladograms which are a type of phylogenetic tree constructed from a series of two-way branch points. The key rule on a cladogram is that organisms in a clade (group) must share inherited characteristics that unite a group of organisms. which organism descended from which organism. inherited traits that do not occur outside the group.