What is scientific racism and how did scientific racisms influence immigration policies in the United States?

Race and ClassProfessorDiscussion Activity,
This discussion activity must be informed by historical andsociological data and key terms presented in Golash-Boza, Race and Racisms,Chapters 1 and 2.Engage in ideas and evidence on which “science” and “pseudoscience” are based. How did “scientific racism” shape beliefs in racial hierarchyin the United States? How did ideas about race impact Native Americans and immigration policy.
When you have completed reading, reviewing key terms, andworking on questions found and the end of Chapter 1 and 2 write up a responseto the following discussion topic.
What is scientific racism and how did scientific racismsinfluence immigration policies in the United States?