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.
There are 100 members in the Senate. Each state elects two senators no matter the size or population of the state. In the House of Representatives there are 435 members. States are divided into districts based on their population. For every 693,000 people, a state will have one district. Tennessee has nine districts, and therefore nine members of the House of Representatives. A senator serves a six year term and they represent everyone in his or her state. A member of the House of Representatives serves a two year term and represents only the people who live in his or her district.