Researchers want to know whether or not vitamin d is an effective treatment for multiple sclerosis (ms). they conduct a study in which they randomly assign participants with ms to take vitamin d or placebo daily. this is an example of a summary type of research.

What is the term used for the belief that the white race is superior to all other races

What is the most common way for americans to receive their news?

What is one main reason some governments in the twentieth century began campaigns of genocide? a) a minority group wanted total independence. b) a minority group wanted more say in lawmaking. c) a minority group had different cultural customs. d)a minority group protested against government policy.