Final answer:
The Yanomamo follow a subsistence economy where they rely on their immediate environment to meet their basic needs.
Step-by-step explanation:
The economic system that the Yanomamo follow is known as subsistence economy. This means that they rely on the resources available in their immediate environment to meet their basic needs, such as growing plantains and bananas and hunting for food. They do not engage in outside contributions or trade to meet their economic needs.
Learn more about Yanomamo economic system