Which effects did the Columbian Exchange have? Responses Europeans became more open-minded to other cultures and respected the peoples in the New World. Europeans became more open-minded to other cultures and respected the peoples in the New World. Plants brought to Europe, such as corn and potatoes, became important to the economy and the way of life. Plants brought to Europe, such as corn and potatoes, became important to the economy and the way of life. Horses and other cattle changed the way people traveled and farmed in the New World. Horses and other cattle changed the way people traveled and farmed in the New World. Many Native Americans were enslaved and sent to Europe to be sold.