Answer:
the result of an interaction between the genetic expression and the resulting social environment .
Step-by-step explanation:
In terms of psychology, aggression is the behavior in which the individual tends to harm himself, others or things present in the environment. The individual shows such behavior to exert the anger or hidden fear present inside him. It is also a product of competition which builds intimidating and threatening feelings in the person. In Timothy's case, his aggression towards his peers was the result of social treatment given to him. He was exposed to such an environment that his aggression emerged at a higher level as compared to the other peers.