The bicameral legislature of Britain is known as

The bicameral legislature of Britain is known asParliament of the United Kingdom of Great Britain and Northern Ireland.

Parliament is bicameral but has three parts, consisting of the sovereign (Crown-in-Parliament), the House of Lords, and the House of Commons (the primary chamber).

it's not the readmission

an interest group is an organization whose members share common concerns, and try to influence government policies that impact those concerns. elected officials frequently complain about the influence of "special interests" on american politics.