Final answer:
The structure of personality responsible for conscious adaptation to reality is the Ego, which acts as a mediator between the Id and Superego to ensure survival and social conformity.
Step-by-step explanation:
The structure of personality that is responsible for conscious adaptation to reality is the Ego, according to Freud's theory.
The Ego is the conscious mind and acts as a mediator between the Id (primitive drives) and the Superego (societal demands).
The Ego reconciles the conflicting forces by using the reality principle, which is the understanding that complete indulgence in desires may lead to harm. Therefore, the Ego adapts to reality by making conscious decisions to ensure survival and social conformity.