Which psychological approach examines behavioural processes in terms of their adaptive value for a species

A)  physiological 
B)  humanist 
C)  clinical 
D)  evolutionary

In-group homogeneity bias refers to tendency to perceive less variability among members of an out-group than among members of the in-group.

People's prosocial behavior is influenced by:

A) only genes.
B) only experiences.
C) neither genes nor the environment.
D) both genes and the environment.