Who advocated separation of the races?

Inspired by the example of that great cornellian, vladimir nabokov, some of your friends have become amateur lepidopterists (they study butterflies). often when they return from a trip with specimens of butterflies, it is very difficult for them to tell how many distinct species they've caught— to the fact that many species look very similar to one another. solution

When many cultures come together to live in a society, this is called: cultural traits multiculturalism perspective

The american public was excited by the invention of the railroad system. true false