How did the how the 13th amendment did not fix the problems in the Constitution.

Though the Amendment abolished slavery throughout the United States, some Black Americans, particularly in the South, were subjected to other forms of involuntary labor, such as under the Black Codes, as well as subjected to white supremacist violence, and selective enforcement of statutes, besides other disabilities.

the answer would be a i think?

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