The trading of crops between Europe and North America allowed for a bigger diversity of food for both cultures. This also brought animals that allowed for new modes of work and transportation to the Native Americans.

Sources:

-https://dash.harvard.edu/bitstream/handle/1/11986330/nunn-columbian-exchange.pdf?sequence=1

-http://www.learnnc.org/lp/editions/nchist-twoworlds/1866

The trading of crops and animals