How can slime molds be both unicellular and multicellular?

when the slime mold dictyostelium discoideum or dicty for short runs out of food sulfur limitation drives its development from a unicellular to a multicellular organism

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.

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