Question

What happens to cells in multicellular organisms as they continue to divide and increase in size?

Answer 1

Is division in control manner or uncontrol manner ???
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Answer 2

initially during embryonic development the cells present are highly proliferative and less differentiated for eg stem cells. This rapid proliferation aids in the growth of the organism . however as the organism grows the already proliferated cells start differentiating into various specialized cell types like cardiomyocytes of the heart or neurons of th brain etc. These differentiated cells have very limited proliferating capacity. Thus as an organism grows the dividing potential of cells decreases and they acquire a more specialized phenotype characteristic of the tissue which they are a part of.