Orginisms wgen they get combined makes it better How are evolutionary relationships important in classification? Biologists now group organisms into categories that represent lines of evolutionary descent, or phylogeny, not just physical similarities.closely linked to classification: members of one genus must be more closely related to each other than they are to organisms of a different genus.In general, organisms that share similar physical features and genomes tend to be more closely related than those that do not. Such features that overlap both morphologically (in form) and genetically are referred to as homologous structures; they stem from developmental similarities that are based on evolution.Scientists use a tool called a phylogenetic tree to show the evolutionary pathways and connections among organisms. A phylogenetic tree is a diagram used to reflect evolutionary relationships among organisms or groups of organisms.
