What part of our government today is based on the english parliament?

When our Founding Fathers sought inspiration in forming our government after the American Revolution, it was to the mother country of Great Britain -- at the time, the world’s most powerful parliamentary democracy -- that they turned. It may at first seem like a contradiction that the very country we had fought a bloody war to get away from was in fact the country that inspired so many of our political traditions. But to turn away from British traditions would, in a sense, be like turning away from our birthright.

Where are the options?