A multicellular organism is one that is constituted by two or more cells which arise from a single cell which multiplies generating an organism. The cells of multicellular organisms aredifferentiated to perform specialized functions and reproduce by mitosis and meiosis.Cellular specialization includes the division of biochemical functions, the specialization of cells for contact with the environment and the separation between somatic cell and germ cell.
They are different ranks in a taxonomy hierarchy. The genus is more exclusive than the phylum. Order: Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
