10 Population Dynamics â¢â¯Metapopulations A metapopulation is a population of populations. Metapopulations Metapopulations âspatially isolated populations that are linked by the dispersal of individuals. Metapopulations are characterized by repeated extinctions and colonizations.
Osteopenia is a condition in which bone mineral density is lower than normal. It is considered by many doctors to be a precursor to osteoporosis.ike osteoporosis, osteopenia occurs more frequently in post-menopausal women as a result of the loss of estrogen. It can also be exacerbated by lifestyle factors such as lack of exercise, excess consumption of alcohol, smoking or prolonged use of glucocorticoid medications.
Types of Ostomies and Continent Procedures. The terms ostomy and stoma are general descriptive terms that are often used interchangeably though they have different meanings. An ostomy refers to the surgically created opening in the body for the discharge of body wastes. A stoma is the actual end of the ureter or small or large bowel that can be seen protruding through the abdominal wall. The most common specific types of ostomies are described below.