Why did african american migrants from the south experience prejudice from some blacks in the north?

How do i do this? true or false? : elephants have the same dna as humans and bananas alike.

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal

Who were the only people that were not allowed to be a citizen in the roman empire