Which of the following is not a reason for people to emigrate from mexico to the united states? a. many immigrants can find better jobs in the united states than in mexico b. the current laws make it easy for mexicans to immigrate to the united states. c. the economy is really bad in mexico. d. there are already mexican communities in the united states, which makes it easier.

Ithink the answer is a :

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.