Even though humans are made up of trillions of cells … there is not one ‘new’ function in our bodies that is not already expressed in the single cell. Virtually every eukaryote [cell that includes a nuclear membrane] possesses the functional equivalent of our nervous system, digestive system, respiratory system, excretory system, endocrine system, muscle and skeletal systems, circulatory system, integument (skin), reproductive system, and even a primitive immune system, which utilises a family of antibody-like ‘ubiquitin’ proteins.
