Bone, which is made of collagen, which is strenghtened by calcium phosphate
When you stretch, the muscle fiber is pulled out to its full length sarcomere by sarcomere, and then the connective tissue takes up the remaining slack. When this occurs, it helps to realign any disorganized fibers in the direction of the tension. So the answer is C
Lung cancer, respitory problems, digestive problems, and other cancers.
Answer:
drugs, because there are drugs out there like fentanyl which is deadly or cocaine which is addicting as well.
The answer is D. weight control is the primary benefit of exercise