What was one of the reasons the jamestown colonists did so poorly at first ?

Instead of putting their energy into farming, they wasted time looking for gold

you really need to put more information in your (question); /// i believe you are talking about ///creek traveler"s rest, about lewis and clark not good

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)