Multi-celled organism
1. They have a nucleus which serves a great function in many cellular activities. Nucleus, the control center of the cell is the organelle which intiates, enables, and manages the various simplex. compound and complex cellular activities. It also stores the DNA of the cell which is then replicated and recopied over a hundredth and thousandth times over through cell division processes. In the nucleoplasm -nucleolus, the inner part of nucleus of a cell is where the DNA to mRNA and to protein; vice-versa happens.
2. Muticellular organisms have improvised mitochrondria and chloroplast vital for many functions.