Suppose you made a wave by pinching the coils of a spring together and then letting
go. a few seconds later, the spring's coils aren't as far apart in its compressions or as far
apart in its rarefactions. what has happened to the wave, and what type of wave does
this model?

Federal deposit insurance corporation

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.