The parliament consists of a house of lords and house of commons. The house of lords is smaller and has people appointed there by the queen while the house of commons is the place that is larger and people vote who goes in there. The house of lords can't do anything that the house of commons dislikes and the house of commons has higher political power
The congress has the senate and the house of representatives. The senators are smaller in size and they are elected two per state while the house of representatives has membership based on the population of the people. This was based on the English parliament which is also a bicameral parliament meaning it has two houses.