Final answer:
The Native Americans were able to create more permanent settlements during the Eastern Woodland Era because they learned to cultivate plants and practice agriculture.
Step-by-step explanation:
The Native Americans were able to create more permanent settlements during the Eastern Woodland Era because they learned to cultivate plants and practice agriculture. By cultivating their own native plants, they had a more reliable food supply and were able to establish settled communities. This led to social transformations and the development of more defined territories.