Your text is mostly clear, but there are a few grammatical errors and some awkward phrasing. Here’s a revised version:
Great Britain is a constitutional monarchy, while Germany is a parliamentary democracy. Germany has a president as the head of state, whereas Britain has a king or queen serving as the head of state. Both Germany and Britain are democracies with a bicameral legislature. Additionally, both nations have a head of government and a system of checks and balances.
Key changes made:
- Changed "has is" to "is."
- Used "whereas" instead of "meanwhile" for better contrast.
- Changed "two house legislation" to "bicameral legislature" for clarity and correctness.
- Reworded "balance of power" to "system of checks and balances" for more accurate terminology.
Let me know if you need further assistance!