Epigenetics describes how environmental factors may affect chemical factors to alter gene expression.
This is further explained below.
Generally, The field of biology known as epigenetics is concerned with the study of heritable phenotypic modifications that do not entail changes to the DNA sequence. The term "epigenetics" comes from the Greek word "epi," which means "on top of" or "in addition to" The conventional genetic foundation for heredity is referred to as "the basis."
In conclusion, One example of an adaptation is the elongated, streamlined shape of a penguin's wing, which enables them to swim efficiently through the water.
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