During a social event, Elena observes another woman, Harper, flirting with Elena's long-term partner, Julian. Elena immediately walks over, stands closely next to Julian, and makes several highly critical remarks about Harper's character and appearance to humiliate her.
Describe how evolution and natural selection could account for Elena's behavior.
88 exam-style questions on Edexcel A Level Psychology Content, covering Central nervous system and neurotransmitters, Effect of recreational drugs on transmission, Brain structure and aggression, Evolution and natural selection, Freud's psychodynamic explanation of aggression, Role of hormones in aggression, Individual differences, and Developmental psychology. Each one has a worked solution and a mark scheme showing where the marks go.