What groups make up the Parliament?

Parliament in many countries, such as the United Kingdom, is typically composed of two main groups: the House of Commons and the House of Lords. The House of Commons consists of Members of Parliament (MPs) who are elected by the public, while the House of Lords includes appointed members, such as life peers, bishops, and hereditary peers. In other parliamentary systems, like Canada or Australia, the structure may vary slightly but generally includes similar components of elected representatives and appointed members.