Christendom and the Muslim religions both have many different denominations. More than not most all religions have an offshoot.
Buddhism, Christianity and Islam each has a number of denominations/sects. Judaism doesn't really have denominations, just levels of orthodoxy. Hinduism does not have "orthodoxy" so it doesn't have denominations; rather, every Hindu is encouraged to find a unique pathway. Even Mormonism (which is really a separate religion and not a sect of Christianity) has at least five sub-groups. Sub-dividing a religion seems to be a natural human activity.
Christianity
Clergy from all denominations are (typically) ordained in their particular religion.
Christianity, in all forms of denominations.
Christianity in various denominations
Christian (all denominations)
Christianity is a religion. There are different denominations though, and Protestants and Catholics.
All denominations of Christianity have churches.
Christianity, particularly in its major denominations such as Catholicism, Orthodox Christianity, and mainstream Protestantism, believes in the Holy Trinity. This doctrine holds that God is one being in three persons: the Father, the Son (Jesus Christ), and the Holy Spirit.
Christianity
Currently, the largest religion based on the number of practicing followers is Christianity, although this can be further broken down into smaller denominations such as Catholic, Methodist and Protestant. the second largest religion is Islam.
About 52% are Christian, of which the majority are from evangelical Protestant denominations.