Answer:
The leader of a caliphate is called the caliph, meaning deputy or representative. All caliphs are believed to be the successor to Prophet Muhammad. ... Abu Bakr's supporters would come to be known as Sunni Muslims, who believe that Muhammad did not leave instructions regarding his successor.
Explanation:
He established a new unified Arabian Peninsula, which led to the Rashidun and Umayyad Caliphates and the rapid expansion of Muslim power over the next century, With additional support, Abu Bakr was confirmed as the first caliph (religious successor to Muhammad) that same year
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Yes, it is true that caves are a type of island ecosystem according to the theory of island biogeography, since many caves at one point in time were in fact underwater.
