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.
1 How is the Plantae Kingdom different from other Kingdoms? 2 Cell Structure; 3 Habitat; 4 Picture or Physical Description (include color) 5 Food; 6 Parts of the Organism; 7 Importance of Humans