The right option is; Linnaeus primarily used physical characteristics
Some of Carl Linnaeus’s classifications of organisms are incorrect because he primarily used physical characteristics.
Carl Linnaeus, known as the father of taxonomy, was a Swedish biologist who classified organisms according to their physical characteristics. Carl Linnaeus proposed that there were three major groups, named kingdoms. These kingdoms were animals, plants, and minerals. He divided each of the kingdoms into five levels which are; class, order, genus, species, and variety. Organisms were arranged in these levels according to their traits, which include physical appearance such as body size, and shape, similarities of body structure, and way of obtaining food.
