Answer:
bicameral legislature
Step-by-step explanation:
The bicameral legislature separate the legislative body within the government. The British separated it into 'house of commons' and 'house of lords'. United States adopted this system and created 'House of representatives' and the 'Senates'.
The house of representatives are responsible for the legislations that affected a specific district. The senate on the other hand, responsible for the legislations that affected the whole state.