What was one affect of the development of agriculture in South America?

One effect of the development of agriculture in South America was the rise of complex societies and civilizations. As agriculture allowed people to settle in one place and produce surplus food, it led to the formation of permanent settlements and the development of social hierarchies. This eventually gave rise to advanced civilizations such as the Inca, Maya, and Aztec, which had their own systems of governance, infrastructure, and cultural achievements. The development of agriculture also brought about increased population density and specialization of labor, as people could dedicate themselves to different tasks such as farming, crafts, or trade.