In an american dilemma, gunnar myrdal argued that segregation was furthered by which group's sense of status competition?

Whites or dominant group--The dominant group (whites) used prejudice and poor conditions to justify continued poor treatment of minorities especially blacks in America. 

The American Dilemma is a concept that the US believes in equality and opportunity but has used their prejudicial beliefs to discriminate against blacks in America. The poor conditions created less success and then "proved" to whites that they were not an equal race thus justifying unfair treatment. 

The constant presence of diseases or infectious agents within a given geographic area or population group. it may also refer to the usual prevalence of a given disease with such area or group. it includes holoendemic and hyperendemic diseases. a holoendemic disease is one for which a high prevalent level of infection begins early in life and affects most of the child population, leading to a state of equilibrium such that the adult population shows evidence of the disease much less commonly than do children (malaria in many communities is a holoendemic disease). a hyperendemic disease is one that is constantly present at a high incidence and/or prevalence rate and affects all groups equally. so probably family history.