An example could be moths since certain moths in certain areas have a higher reproduction rate than others and have adapted camouflage to survive against predators
Acquired traits can be passed to offspring
In general, coding regions are more likely to have the same sequence. It is more likely to produce a non-functional gene product (protein).
Non-coding mutations are free to mutate because it has no protein product, and are less likely to affect phenotype. They are neutral mutations. Different mutations can be differentiated even when different groups have the same coding sequence.
