What are the key distinctions between a presidential system and a parliamentary system of government, specifically in terms of four major differences?

In a presidential system, the executive branch is separate from the legislative branch, with the president serving as the head of state and government. In a parliamentary system, the executive branch is part of the legislative branch, with the prime minister being the head of government.

Another key difference is that in a presidential system, the president is elected separately from the legislature, while in a parliamentary system, the prime minister is typically a member of the legislature and is chosen by the majority party or coalition.

Additionally, in a presidential system, the president has a fixed term in office and cannot be easily removed by the legislature, whereas in a parliamentary system, the prime minister can be removed through a vote of no confidence by the legislature.

Lastly, in a presidential system, there is a clear separation of powers between the executive and legislative branches, while in a parliamentary system, the executive branch is accountable to the legislature and can be easily influenced or controlled by it.