Compare the political system in the UK and in the USA

The _____ is the head of the executive branch.
The _____ are elected.
The ____ are appointed.

The President is the head of the executive branch.
The President and the members of the US Congress are elected.
The members of the Cabinet are appointed.

The Prime Minister is the head of the executive branch.
The members of the House of Commons are elected.
The Prime Minister and the Cabinet are appointed.