Linked from
The 8 pages that link to Multicellularity, each with the reason it gives.
AnimalRelated: Animals develop as multicellular bodies whose cells acquire specialized roles.
ProterozoicRelated: Its early forms emerged before the end of the Proterozoic.
ChoanocyteRelated: Choanocytes function as specialized cells within a multicellular sponge.
TrichoplaxRelated: Trichoplax shows a highly simplified form of multicellular animal organization.