Examlex
In 2010, American society's median age was almost _____, up from 30 in 1980.
Trait
A distinguishing quality or characteristic, typically one belonging to a person.
Behavior
The observable actions or responses of humans or animals in response to external or internal stimuli.
Genes
Units of heredity made up of DNA that act as instructions to make molecules called proteins, influencing the development, functioning, and reproduction of organisms.
Behavior Geneticists
Scientists who study the genetic and environmental influences on human behavior, often through twin and adoption studies.
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