Toxic damage to cells can cause individual cell death and if sufficient cells are lost, the result can be tissue or organ failure, ultimately leading to death of the organism.
If enough cells shrink in size, the whole organ shrinks. Toxic damage to cells can cause individual cell death, and if sufficient cells are lost, the result can be tissue or organ failure that ultimately leads to the death of the organism.
Cell differentiation is how cells become specialized. This occurs through a process called gene expression. Gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a cell functions.