Individuals' compliance with group goals, in spite of the fact that group goals may be in conflict with individual goals
Descent traced through the father
The attribution of hereditary differences to human populations that are genetically distinct
Piaget's stage of development in which infants are unable to differentiate themselves from their environment; they are unaware that their actions produce results, and they lack the understanding that objects exist separate from the direct and immediate experience of touching, looking, sucking, and listening