Which animal in the columbian exchange had the greatest effect on native american cultures

In an effort to end the civil war, in 1864 the union planned to

The 14th amendment overruled the supreme court case of dred scott vs. sandford. the landmark supreme court case determined which of the following points? a.slaves could not be citizens b.non-landowners could not be citizens c.blacks could not be citizens d.all persons born or naturalized in the united states vary differently in citizen status.

What is the main reason the united states removed the taliban from power shortly after the september 11 2001 attacks ?