Ramon and eric have grown up together in texas. ramon speaks spanish and english at home, while eric's sole language is english. their language skills are an example of a(n) brain function.

The answer is experience-dependent. The question was based on the language used at home which served as the foundation for the children's languages. Ramon learned both English and Spanish because it was both used in their home. Eric only learned English since it was the only language used at home. The children displayed their dependency on learning based on their experiences with communication to their families.