| A | B |
|---|
| migrate | to move from place to place |
| band | small family groups who lived and hunted together |
| extinct | to die out |
| midden | trash pile |
| artifact | any object made by people from the past |
| archaeologist | scientist who studied artifacts to learn about people from the past |
| division of labor | dividing work among people so life is easier |
| specialize | to learn a job very well |
| trade | exchanging; buying and selling of goods |
| barter | to trade one good for another without money |
| network | large system usually relating to work (or trade in this case) |
| temple | religious building |
| culture | ways of life |
| tribe | a group with the same leader |
