A multicellular organism is

an organism that only has one cell

an organism that contains more than one cell

an organism that does not have any cells

an organism that has only one type of cell

A multicellular organism is an organism with multiple cells. They are known as Eukaryotes in contrast to Prokaryotes which are single celled organisms.

Look i'm not sure about this one but i think is - - - >> an organism that contains more than one cell ... Because it's say that is an organism with multiple cells.