Workers on an assembly line are an example of

specialization

Explanation:

An assembly line is an industrial arrangement that allows the manufacture or assembly of parts and products in sequence.

Usually a moving belt or chain is used, hence the name line, which supports the product or parts that will receive the intervention of workers who work around the Assembly Line, each worker has a specialty and works performing a part of the operation. or a portion of the product. For this reason, we can conclude that workers on an assembly line are an example of specialization.

regarding the law, the 15th amendment was specifically designed thinking in the rights of black free men.

even though ratified on february 3, 1870, the promise of the 15th amendment would not be fully applied for a long time.poll taxes and literacy tests would allow southern states disenfranchise african americans. only in 1965 the voting rights for african americans would be actually able to vote in the south.

in 1965, president johnson signed the voting rights act, which aimed to overcome legal barriers that prevented african americans from voting as it was guaranteed by the 15th amendment to the u.s. constitution.