In a parliamentary system, by contrast, the legislature holds supreme power. The prime minister is chosen by members of the legislature (Parliament) from among their own number and in practice is the leader of the majority party in the legislature.
There are 435 Representatives in the House of Representatives. The number of members in the House of Representatives is a different story and is based on population.
The House of Representatives is composed of 480 members, of whom 300 are elected from the single-seat constituencies and 180 by the proportional representation system in which the nation is divided into 11 electoral blocs which according to size return between 6 and 30 members.