Final answer:
The human skeleton is continuously remodeled at a rate of 5 to 7 percent per year, with complete renewal roughly every 10 to 20 years.
Step-by-step explanation:
The question asks about the rate at which the human skeleton is renewed. In humans, about 5 to 7 percent of skeletal mass is broken down and rebuilt each year. This process of bone turnover is quite high, meaning the skeleton is constantly being remodeled. While the bone in certain areas, such as the femur head, may be completely replaced every six months, other parts like the shaft of the bone change much more slowly. Bone density also peaks around 30 years of age. Considering this information, we can conclude that you basically get a new skeleton every 10 to 20 years.