Final answer:
The process that best illustrates the effect of development stages on the interaction between instinct and learning is imprinting.
Step-by-step explanation:
The process that best illustrates the effect of development stages on the interaction between instinct and learning is imprinting. Imprinting is a type of learning that occurs at a particular age or life stage and is independent of the species involved. An example of imprinting is when hatchling ducks recognize the first adult they see, typically their mother, and make a bond with her. This interaction between instinct and learning is important in the maturation process of animals, as it encourages them to stay near their mother for protection and survival.