That would probably be Shiites and Sunnis. Both pray to Allah(swt) and follow the prophet Muhammad (pbuh). The difference is that Sunnis believe the first four caliphs were the rightful successors of the Prophet Muhammed (pbuh) as they were his closest companions during his rule. Shiites insist that true leaders of Islam must be descendants of Ali, the fourth caliph and Muhammed's son in-law. By the way, Sunnis account for about 85 percent of the world's Muslims while the Shiite Muslims Account for about 15 percent of the world's Muslims.
The two major divisions of the Muslim Community is Shia and Sunni . They are both different in religious practice and religious leaders , also different distributions !
The two major divisions are prose and poetry.
There are three major divisions of the brain.* Forebrain * Midbrain * HindbrainHemispheres
The two major divisions of the human nervous system are the central nerves and the peripheral nerves.
Heyfers is one.
mechabic and organic
no
There are actually four major divisions of philosophy; they are Epistemology, Metaphysics, Logic and Ethics. But these four divisions are under Dualism and Non Dualism.
vertebrae and invertebrate
comedy and tragedy
classical physics and (Quantum or modern) Physics
Pulmonary circuit and the systemic circuit.
The major division of the internal are cochlea and ear drum and Eustachian tube