Answer:
Cultural Borrowing
Explanation
Cultural borrowing is the appropriation of ideas and practices from other cultures or societies. In this case, medical practice (herbal remedies) from South America being incorporated into modern medicine in the United States.
Answer: cultural borrowing
Explanation: Almost every culture adopts ideas, elements, components etc. from other cultures as their own. This leads to the concept of cultural borrowing. Cultural borrowing is defined as the adoption and use of ideas and practices from another culture, ethic group or religion. This is exactly what happens when herbal remedies and acupuncture of South America and the Orient respectively impacts modern medicine of the U.S.