1. Democratic governments
Parliamentary and presidential

2. What is a ?Republic?
Just because a country is considered a Republic does not mean that they are considered a Democracy! 
A Republic is when a nation is bound by a "constitution" that gives the people the right to elect their representatives.  However, just because they elect their representative does not mean that they have freedom; which would be the case in a democracy.  So the Republic of Sudan allows it's people to elect it's government officials, but the rights of the people and the way that the government governs the people does not match that of a democracy.

3. Democracy In a democracy, the government is “Ruled by the people”
There are two forms of democracy
Direct Democracy – People vote on all the issues.
Representative Democracy – People elect representatives and give them the power to vote on issues.
Example: United States

4. Democratic Governments
There are two major forms of democratic governments:
Parliamentary
Presidential

5. Parliamentary The real executive power vested in the cabinet
Cabinet composed of members of the legislature who are individually and collectively responsible to the legislature
May have a Prime Minister that is elected by the legislature
Ex: Turkey

6. Presidential
The president is constitutionally independent of the legislature
Citizens vote for the president

7. DEMOCRATIC GOVERNMENT PRESIDENTIAL FORM OF DEMOCRATIC GOVERNMENT
PARLIAMENTARY FORM OF
DEMOCRATIC GOVERNMENT
PRESIDENTIAL FORM OF DEMOCRATIC GOVERNMENT
The people vote for those who represent the political party they feel best represents their views of how government should operate.
*They elect the legislature.
The Parliament makes and carries out the laws.
The party that wins the majority of votes chooses the leader – Prime Minister/Premier. He is now head of the executive branch & member of parliament. Also, Prime Minister can be voted out if he loses power (unlike Presidential form of government) Often, there is also a Head of State (ceremonial) aka THE QUEEN! Israel (Knesset- legislative body) Diet (the legislative body in Japan)
The President is chosen separately from the legislature. The legislature passes the laws and the President sees that the laws are enforced. The President is the official head of Government and is in a separate branch of government (unlike Parliamentary). The President serves for a set period of time.