Final answer:
Native Americans from the Subarctic and Great Basin regions led nomadic lifestyles, adapting to their respective harsh environments and maintaining small, mobile communities until significant European contact.
Step-by-step explanation:
The Native Americans from the Subarctic and Great Basin regions were similar in that they both led a nomadic lifestyle. In the Subarctic, groups like the Cree and Ojibwa relied on hunting and gathering due to the harsh climate that made agriculture impractical. They traveled across tundra and waterways in small groups for sustenance. Conversely, the peoples of the Great Basin, including the Shoshone and Paiute, also engaged in a nomadic lifestyle, moving around to forage in the often-barren lands. Developments such as the introduction of horses significantly impacted the mobility and way of life for these groups.
Both regions were characterized by small, mobile communities that adapted to their environments and maintained their traditional ways until significant European contact. This contact brought about changes, including the relocation onto reservations, often due to European colonization and resource competition.