what does it mean to be multi cellular
Multicellular organism Multicellular organisms are organisms that consist of more than one cell, in contrast to unicellular organisms.[1]
Cell (biology) The cell (from Latin cella, meaning "small room"[1]) is the basic structural, functional, and biological unit of all known living organisms. A cell is the smallest unit of life that can replicate independently, and cells are often called the "building blocks of life". The study of cells is called cell biology.