What are the characteristics of a healthy cell and a cancer cell?

The rate of growth Normal cells reproduce themselves and then stop when enough cells are present. Cancer cells reproduce rapidly before the cells have had a chance to mature. Maturation Normal cells mature. Cancer cells, because they grow rapidly and divide before cells are fully mature, remain immature.

You can literally find this on google of each science career and search up what type of training you need and how many years in school

If you under eat, your bones will narrow.