| A | B |
|---|
| landbridge | an isthmus or wider land connection between otherwise separate areas |
| artifact | usually a simple object such as a tool or ornament showing human work |
| Caribbean | a region that consists of the Caribbean Sea, its islands and the surrounding coasts |
| civilization | the stage of human social development and organization that is considered most advanced |
| culture | the stage of human social development and organization that is considered most advanced |
| environment | the whole complex of factors such as soil, climate, and living things |
| hypothesis | something not yet proved but assumed to be true for purposes of further study or investigation |
| migration | to move from one country, place, or locality to another |
| North America | a region that includes Canada and the United States |
| South America | a continent and region of the Western Hemisphere southeast of North America and has much of it south of the Equator |
| Mesoamerica | the geographic region extending approximately from central Mexico to Belize, Guatemala, El Salvador, Honduras, Nicaragua, and northern Costa Rica |
| Paleo-Indians | name given to the first peoples who entered, and subsequently lived, in the American continents during the final glacial episodes |
