D for sure. That seems perfectly christian-minecraft server-y of a school to put that as an option, it must be right.
Kytos actually means cell
Answer:
Classification is a systematic ordering of the object of research, in this case, ecosystems at the earth's surface or, in other words: landscape units as 'holons'. As for general principles of classification, we can learn a lot from the best-known classification, the taxonomical classification of species.
Explanation:
