Why is there no variation as a result of asexual reproduction?

Asexual reproduction involves a single organism replicating itself, resulting in offspring that are genetically identical to the parent. This lack of genetic variation occurs because the offspring are produced through processes like mitosis, which do not involve recombination of genetic material. As a result, any mutations that may occur are the only source of variation, but these are typically minimal compared to the genetic diversity generated through sexual reproduction. Consequently, asexual reproduction can limit adaptability to changing environments.