There are two types of variation - continuous and discontinuous.

Types of Variation In a variation if variables change proportionately i.e. they either increase or decrease together then it is direct variations. Therefore, if X is in direct variation with Y, then you can symbolically write it as X α Y. In inverse or indirect variations, the variables change disproportionately.

Variation, in biology, any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences (genotypic variation) or by the effect of environmental factors on the expression of the genetic potentials (phenotypic variation).

Types of Variation The term variation refers to the differences between living organisms Variation can be: between different species or within a single species continuous or discontinuous caused be genetic and/or environmental factors Interspecific vs intraspecific variation Interspecific variation