Final answer:
The evolutionary perspective that accounts for individual differences in traits and behavior is that traits are a result of both genetic and environmental influences.
Step-by-step explanation:
The evolutionary perspective that accounts for individual differences in traits and behavior is that traits are a result of both genetic and environmental influences.
Evolutionary psychology looks at how personality traits have evolved over time and how they contribute to survival and reproductive advantage. This perspective recognizes that while genetics play a role in shaping traits, the environment also influences their expression. For example, some personality traits may have evolved in response to specific environmental conditions in the past.
This evolutionary perspective is supported by research in behavioral genetics, which examines how genes and the environment interact to contribute to individual differences in behavior. Twin and adoption studies are commonly used to investigate the relative importance of genes and environment on the expression of traits.