*Sigh* It's important because conserving energy helps the environment and lets you have a little more pocket money when the bills come around.
It's depend of your weight and you tall.
Also it's depend if you are doing sport or a diet.
Answer:
Cellular differentiation is the process in which a cell changes from one cell type to another. Usually, the cell changes to a more specialized type. ... Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and during normal cell turnover.