Individual #systematics__systematic  the science of systematic classification
  instance of:  #scientific_discipline
  >part:  #biosystematics__biosystematy  use of data (e.g. cytogenetic or biochemical) to assess taxonomic relations especially within an evolutionary framework
  >part:  #taxonomy.systematics  (biology) study of the general principles of scientific classification
     >part:  #cladistics  a system of biological taxonomy based on the quantitative analysis of comparative data and used to reconstruct trees summarizing the (assumed) phylogenetic relations and evolutionary history of groups of organisms

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