Final answer:
Epithelial cells of the skin and gastrointestinal lining are human cells that divide frequently throughout life.
Step-by-step explanation:
The human cells that divide frequently throughout life include epithelial cells of the skin and gastrointestinal lining. These cells divide very frequently to replace those that are constantly being rubbed off of the surface by friction. However, there are a few types of cells in the body that do not divide, including nerve cells, skeletal muscle fibers, and cardiac muscle cells.