Which river is explored by the spanish

Is there such a thing as a social structure that constrains individual action, or is society nothing more than a figment of our imaginations?

Two grizzly bears are fighting over a fish to feed themselves. what kind of interaction is this scenario, which works as a limiting factor in the bears' survival? a. apparent competitionb. interference competitionc. exploitation competitiond. mutualism

What would happen if people from different races were seperated today