Do the variations that occur among individuals of a species are or are not passed on to offspring?

The variations that occur among individuals of a species can be passed on to offspring if they are genetic traits. Genetic variations arise from mutations, recombination, and other processes, and these can be inherited by the next generation. However, variations that are acquired due to environmental factors or experiences (phenotypic variations) are typically not passed on genetically. Thus, only heritable variations contribute to the genetic diversity of future generations.