Almost every cell in the human body is replaced every few years through the process of
duplication
meiosis
mitosis
replication

Mitosis is the cell division that happens to replace old cells with new ones.

Describing how is the cells group is the process of multiplication of cell or the so-called cell division, mitosis. This mechanism of each cell produces another cell that binds together and produces again, repeatedly, to be a larger system called now the tissue as explained earlier.How? Through cell division called, mitosis. Excerpt meiosis –cell division specifically in the sex cells.

They are labelled as daughter cells.

It is evolution, because we all have some of the same traits like eye color or shape or ears.