Medical reasons for gender selection can also be psychological: a single female may feel better equipped to have a daughter than a son; parents who lost a child may feel a strong need for a child of the same gender.
It is considered that the lining of the stomach is replaced every 5 -10 days due to the highly acidic nature of stomach contents and the need to protect against damage.The process is continual with respect to shedding of cell layers, and there are multiple protective measures to look after the vulnerable surface.t is considered that the lining of the stomach is replaced every 5 -10 days due to the highly acidic nature of stomach contents and the need to protect against damage. The process is continual with respect to shedding of cell layers, and there are multiple protective measures to look after the vulnerable surface.
Some stem cells can even make various kinds of cells, depending on what your body needs. How often do cells divide? Some cells routinely replace themselves, such as those of the inner lining of the small intestine which replace themselves in a weekâs time or less. Other cells stick around for a long time; pancreatic cells can last a year or longer. Still other cells vary in the rate they replace themselves. For instance, the rate at which basal cells in your skin replicate depends on the rate at which the outer layer of your skin sheds. If damage to the skin causes it to shed faster, then basal cells respond by dividing more frequently.