How might mining and ranching impact the native tribes living in the west?

The transcontinental railroad increased both economic growth and the population in the West. They also sold land to settlers, which encouraged people to move West. New railroads helped businesses. West- ern timber companies, miners, ranchers, and farmers shipped wood, metals, meat, and grain east by railroad.

this is a good question! i'll do some research and come back when i have the answer!

travels along an axon. this triggers a wave of electrical activity that passes from the cell body along the length of the axon to the synapse