Final answer:
Andy's choice to join the track team, aligning with his family's running prowess, is an example of gene-environment interaction which is part of the nature vs. nurture debate and involves the process of socialization.
Step-by-step explanation:
Andy's tendency to find an environment that is suited to his genetic tendency is known as gene-environment interaction. This concept falls within the broader nature vs. nurture debate in psychology, which seeks to understand the influences of our genetic makeup and biological factors, alongside how we are shaped by our environment, including our guardians, peers, and culture. In Andy's case, because he comes from a family of competitive runners and has likely inherited certain genetic predispositions towards running, and he seeks out an environment (the track team) that complements these tendencies, he is engaging in a form of self-socialization that exemplifies gene-environment interaction.
Socialization also plays a significant role in this process, as Andy's choice to join the track team is influenced by his social and family environment. However, assimilation is not the correct term in this context, as it refers to adopting the cultural norms of another group, which is not applicable in Andy's situation.