Question

why there is a division of labour in multicellular organisms​

Answer 1

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.A particular function is carried out by a group of cells at a definite place in the body.Like this, different functions are carried out by different groups of cells in an organism.This is known as division of labour in multicellular organisms.

Extra Info...

•Similar functions performed by a single organism that is called Unicellular Organism.

Ex:- Bacteria, Paramecium,chlamydomonas etc.

•Different functions performed by different groups of cells in an organism that is called Multicellular Organism.

Ex:- Amoeba,Humans,Animals,Plants etc.