What is the name for the system of classification, with no biological basis, that uses certain physical characteristics to divide the human population into supposedly discrete groups?

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The system of classification with no biological basis that uses certain physical characteristics to divide the human population into supposedly discrete groups is known as race. Eugenics is a discredited pseudo-scientific theory advocating selective breeding to improve human genetic traits, phrenology is the study of the shape and size of the skull as an indication of character and mental abilities, and hypodescent is a concept where mixed-race individuals are assigned to the lower-status group in society.

What Is the Name for the System of Classification, with No