The Abbasid Caliphate differed from others in that it did not have the same borders and extent as Islam. Particularly, in the west of the Caliphate, there were multiple smaller caliphates that existed in relative peace with them.
The major difference between the protist and the animal kingdom is protists are unicellular protozoans and unicellular & multicellular, but animals are multicellular animals.
A kingdom is the largest and most inclusive category of the Linnaean classification system. A domain, used in modern evolutionary classification, is a larger, more inclusive category Which characteristics are used to place an organism in the domain Bacteria? The organism is a prokaryote, has cell walls with peptidoglycan, and is unicellular