VARIATION
a change or difference from a standard, norm, or expected form, seen as diversity within a species or changes between individuals , often due to genetics or environment, also applying to mathematical relationships or product versions
EVOLUTION
the process by which animals, plants, and other living organisms are transformed into different forms by the accumulation of changes over successive generations.
adaptaition
the evolutionary process where organisms develop traits that improve their survival and reproduction in a specific environment
METAMORPHOSIS
a profound transformation, most famously seen in biology as insects change from larva to adult (like caterpillars to butterflies) but also metaphorically for major personal or societal shifts