How does king balance the twin appeals to religion and patriotism throughout "letter from birmingham jail"?

He links them together side by side. For example, when King was accused of extremism, he responded by asking, "Was Jesus not an extremist, was Amos not an extremist...". He balances the twin appeals of religion and patriotism in an attempt to appeal to all types of people.

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.