Which of these to further the westward expansion in the united states after 1865?

Aresearcher is studying women recently admitted to a state prison. all potential subjects must have children under the age of five. research subjects will be given a basket of toys to use at their children’s first visit that the children can then take home. in assessing this proposal, the irb needs to determine that the toys are: age appropriate.not an excessive incentive.educational.of high quality.

Segregation or discriminatory practices that occur even when there is no explicit legal enforcement

What are the most populous and least populous areas of russia? and why are some areas more heavily populated than others?