Answer;
-Compare the length of DNA among the member of a species.
Step-by-step explanation;
-Modern taxonomy encompasses more approvals in placement of a species into a group. A hierarchical system is used for classifying organisms to the species level. This system is called taxonomic classification.
-The modern classification is an extension of the system of classification proposed by Linnaeus. The present system of classification involves a series of graded taxonomic ranks called taxa which include phylum and family in addition to the four taxa introduced by Linnaeus.