Many muscular/skeletal problems and injuries especially in adults can be attributed to a lack of

flexibility

Explanation:

Stretching may help prevent injury according to many doctors. Stretching improves your flexibility. "A sports medicine physician will determine your level of flexibility and form an activity or exercise prescription with specific exercises and stretches to improve your flexibility." This shows that your level of flexibility contributes to what activities you can do without injury.

1. desertification

2. captive breeding

3. black rhinoceros

4. renewable resources

explanation:

mark brainliest!

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?