A variation is a change or difference in amount, level, form, or arrangement from what is usual or standard. It can refer to any deviation or alteration that makes something distinct from the norm or from other similar things
. In biology, variation specifically means the differences between individuals of the same species. These differences can be caused by genetic factors (inherited differences) or environmental factors (non-inherited influences). Biological variation can manifest in physical traits, behavior, metabolism, and more. It can be continuous (gradual differences like height) or discontinuous (distinct categories like blood groups)
. In mathematics, variation refers to how one quantity changes in relation to another, such as direct or inverse variation, describing relationships between variables
. In music, variation is a technique where a theme or melody is repeated but altered in rhythm, harmony, or other elements to create a different form of the original material
. Overall, variation denotes any change or difference from a standard or norm across different contexts.
