A continuum of change in phenotypic traits across geographic space is called a

Question

Quizplus · Accepted Answer

A cline is a gradual change in a phenotypic trait across a geographic region, often due to variation in environmental factors or gene flow. Breeding populations refer to groups of organisms that can interbreed and produce fertile offspring, and are not necessarily related to geographic variation. Racial classification and folk taxonomy involve grouping individuals based on shared characteristics, but do not necessarily relate to the gradual changes seen in a cline.

A Continuum of Change in Phenotypic Traits Across Geographic Space