What connection can be drawn between the growth of Jim Crows laws, the concept of scientific racism and American and European imperialism abroad?

Answer: the believe that the white race is intellectually superior to the other colored races and hence they are not equal.

Explanation: the Jim crow laws supported racial segregation between whites and colored which was supported by scientific racism and eugenics. American and European imperialism of offshore territories and subjection of the natives which where all perceived to be of lesser race also bolstered the racial superiority ideas.