Classifying Organisms

________: reconstructing the evolutionary relationships among organisms.

________: compares homologous traits, also called characters**,** which may exist in two or more character states.

________: science of describing, naming, and classifying living and extinct organisms and viruses.

All of life belongs to one of 3 domains: bacteria, archaea, and ________.

________: study of biological diversity and the evolutionary relationships among organisms, both extinct and modern.

________: each group at any level

________ use fossil, molecular, and genetic data to infer evolutionary relationships.

science of describing, naming, and classifying living and extinct organisms and viruses

study of biological diversity and the evolutionary relationships among organisms, both extinct and modern

each group at any level is called a taxon

the highest level

bacteria, archaea, and eukarya

reconstructing the evolutionary relationships among organisms

compares homologous traits, also called characters**,** which may exist in two or more character states

shared by two or more different taxa and inherited from ancestors older than their last common ancestor

shared by two or more species or taxa and has originated in their most recent common ancestor