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.
Living organisms are classified into five kingdoms, such as Monera, Protista, Fungi, Animalia and Plantae. Kingdom protista is a special kingdom among these. All living eukaryotes, which cannot be included into other kingdoms such as Plantae or Animalia, are grouped altogether into one group called protista.