Racism is . A. The belief that one race is superior to another B. The scientific study of the races C. Prejudice without stereotyping D. A modern phenomenon

A. The belief that one race is superior to another

Explanation:

Racism is a broad concept that can be identified as prejudice and discrimination in relation to a different ethnicity from another, which leads to the belief that one race is superior to another.

The cause of racism in society can be explained by some historical factors, such as the slavery of the African people in some parts of the world.

Racism is a crime that has already caused a series of barbarities and suffering of people all over the world, and even today it is possible to witness how society is structured by racist standards that benefit some races to the detriment of others, which can be seen by black marginalization, black jobs and salaries compared to whites, etc.

It is necessary that each individual seeks to study how to combat racism in their community, school, work and in general, so that we can build a more just and equal society for all human beings.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

think its caste system

explanation: