Many Progressives opposed social Darwinism because it promoted the idea that - F. people in lower classes were not capable of economic success

G. immigration weakened national unity

H. the government should take responsibility for the well-being of people

J. poverty could be eradicated through increased economic regulation
Please hel

He gathered information from primary sources.

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.