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.
What are the similarities and differences of ancient China and Greece? I could only think about the difference like how Greece had the Polis and was several City-States, essentially Greece was composed of several countries.China, on the other hand, was unified under Qin. That's the only difference I could think of.ou better compare ancient Greece with other small collections of city states, like the Middle Ages Italy, the Ancient Mayas and others. China is more similar to the development of larger Empires in the west, like Rome.