Final answer:
The three main key concepts that the Native peoples developed over time were a communal view of land ownership, adaptation to new technologies, and conflicts between different tribes.
Step-by-step explanation:
The three main key concepts that the Native peoples developed over time were a communal view of land ownership, adaptation to new technologies, and conflicts between different tribes.
The Native peoples did not believe in individual land ownership and believed that the land and its resources were available to all. They moved as necessary to areas with sufficient water and food sources.
The Native peoples quickly adapted to new technologies brought by Europeans, such as firearms, metal tools, and horses. These new technologies significantly changed their way of life and the practice of war.
Conflicts between different tribes were common among Native Americans, and the introduction of new technologies and access to weapons changed the traditional balance between tribes.