How did the arrival of railroads impact the indian territory’s economy?
a. fewer job opportunities were available to non-american indians.
b. the oil and mining industries transported more goods and grew greatly.
c. american indian tribes were able to maintain their traditional economies.
d. land was closed to white settlement, removing opportunities in the territory.

The answer is D. Americans moved many native populations to reserves due to the westward expansion and settlement of anglo-americans.

The correct answer is B. the oil and mining industries transported more goods and grew greatly.

accomplishment : zachary taylor’s was a national war hero in his battle in an mexican war

explanation:

he was known as a national war hero for his battles in the mexican war, taylor was elected as the 12th president of the united states in 1849. he led the nation during its debates on slavery and southern secession. after serving only 16 months in office, taylor died from cholera morbus on july 9,

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