The pluricellular organizations are organizations living S comprising several cells and having cells differentiated ensuring from the specific functions. Most of the time those which can be seen with the naked eye are multicellular, like the animal (members of the reign Animalia ) and the plants (members of the reign Plantae ).
A group of similar cells which provide a function within the pluricellular organization is called fabric. However some unicellular organizations, such as the mycobactery S, have differentiated cells, differentiation is marked than that generally observed at the pluricellular organizations.
A pluricellular organization can be examined on several levels. For example, a sponge, observed at the cellular level, is made up various cells which can be regarded as several co-operating organizations whole in a common objective. This is illustrated by the fact that you can put a sponge in a mixor and the cells of sponge will be incorporated to reform a new sponge.
See too
Simple: Multicellular organism
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