They are called Muslims.
The Islamic nation is called " Al-ummah".
Islam is a religion that can be represented by Islamic Community, Islamic state, Islamic nation, or Islamic world.
This group is called the Shi'a. Its members were known as Shiites.
They are called Shiites. refer to related question for more information.
There is no singular person who represents the entire worldwide Islamic community like the Pope represents all Catholics. In Shiite Islam, there are the Great Ayatollahs which represent vast swathes of the Shiite community. Smaller Islamic communities are represented by Mullahs and Imams for each congregation.
When more people became islamic
Indonesia
The Islamic guidelines for righteous living are called the Islamic law or Shariah. Refer to related question below.
Suggest you ask a Islamic scholar at your local Masjid or Islamic community centre.
Islamic people worship a god called banana
A Caliph or khalifa is a sort of religious dictator, an Islamic ruler, considered to be the political-religious leader of an Islamic community of believers, ruling in accordance with Islamic law.
That is referred to as a biotic community, which consists of various species living in a specific ecosystem.