A polygenetic effect is due to the actions of a single pair of genes

Explain how scientists suspect abnormal behavior is caused by a combination of biological, psychological, and social factors

How is it done please?

Joaquin believes that older adults deliberately withdraw from social contact with individuals who are peripheral to their lives while maintaining or increasing contact with close friends and family members with whom they have had enjoyable relationships. He is a proponent of

socioemotional selectivity theory. selective optimization with compensation theory. social discontinuity theory. activity theory.