How is the process of thinking chronologically related to the process of creating timelines?
A. Chronological thinking skills have replaced timelines for modern
historians.
B. Chronological thinking skills are used to identify sources for a
timeline.
C. Chronological thinking skills help determine if a timeline contains
bias.
D. Chronological thinking skills are necessary to create an accurate
timeline.

Its a whole new world

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.