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Some living organisms are only one cell, or unicellular. Things like bacteria and amoebas are single cell organisms. ... Because cells are able to differentiate and perform different tasks, multicellular organisms can become very complex. For example, red blood cells can carry oxygen throughout the body.
Answer:
They feared competition from black workers.
Explanation:
This certainly proves true. there were entire unions made up North to raise the minimum wage so black workers would be less likely to get hired because they worked for such low wages.
Shi huangdi was the first emperor