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11. Prior to European colonization, warfare was common amongst farming communities as a method to gain additional __________.
12 While mysterious events kept the community from achieving permanence, __________ was the first English community established in the Americas.
13 During the second migration, the Athapascans migrated to the Southwest, and both the __________ and _________ trace their ancestry to this group.
4 One factor that led the Anasazis to abandon the Four Corners area was the frequent raids by the __________.
15 In comparison to __________ communities, farming communities were more complex but also less stable.
16 The 1400s marked a time of exploration and expansion for Europe. Identify and explain three developments that stimulated this age of exploration.
17 . Explain the “Asian Migration Hypothesis” as detailed in the text. According to this theory, how did natives gradually spread over the continent in subsequent migrations?