Final answer:
The committee system is structured to include similar committees in both houses of Congress in order to divide work based on specialization and policy areas. This allows for thorough review of proposals and contributions from members with expertise in specific areas.
Step-by-step explanation:
The committee system is structured to include similar committees in both houses of Congress because it allows for the specialization and division of work. With numerous issues to deal with, the two chambers divide their work based on certain policy areas, and committees are responsible for examining and deliberating on specific proposals within those areas. By having similar committees in both houses, Congress ensures that bills are thoroughly reviewed and that members with expertise in certain policy areas can contribute to the legislative process.