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Based on Data from 2008,the Top Fifth of All Families

question 289

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Based on data from 2008,the top fifth of all families received approximately what percent of all income in the United States?


Definitions:

Biological Prepared

The concept that certain fears, behaviors, or traits have been evolutionarily programmed in humans or animals due to survival advantages.

Epigenetic Marks

Alterations to DNA and histone proteins that influence gene activity, not by changing the DNA sequence, but through chemical changes.

Brain Localization

The theory or concept that different parts of the brain are responsible for specific behaviors, processes, or functions.

Phrenology

A debunked theory suggesting that the shape and size of the skull could determine personality traits and mental abilities.

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