Answer:
since for some reason I cant delete my answer I'm going to edit it.
Classification of living things takes into consideration of everything, except A. The number of cells the organism is found to have.
Your answer will be c) when there was no life on Earth
hope this help!!!:)
The nucleus, which is in a cell. the nucleus acts like a control center. small parts of DNA can also be found in the mitochondria but the majority is located inside the nucleus of every cell