Which statement about mound builder ear spools is true? a. they have pictures scratched or carved onto a flat surface. b. they always show pictures of people. c. they are strung and worn around the neck like a chain. d. they have pictures made with detailed lines and shapes.

Type the correct answer in the box. spell all words correctly. what did german psychologists develop in the 1920s to describe how people tend to organize visual elements into groups? describe how people tend to organize visual elements into groups, or unified wholes, when applying certain principles.