Which branch of science was newly developed after the discoveries about dna?
genetic engineering
plant breeding
animal breeding
nuclear engineering

Before the civil war, the south’s economy was based on enslaved labor. large cities. immigrant workers. factories.

During the 1800s, an important pull factor for immigrants to the united states was

At the beginning of the twentieth century, there were approximately 270,000 native americans left in the united states. according to the 2000 census, there are now four million native americans living in the united states. better treatment of native americans is credited with this population increase. discuss how the indian reorganization act and the indian self-determination and education assistance act aim to improve the lives of native americans in the united states.