I think the answer to this question is two to three.
I believe that it is both myosin and actin.
Answer:
"Normal bone: T-score above -1. Osteopenia: T-score between -1 and -2.5. Osteoporosis: T-score below -2.5."
Answer: HPE is a multidisciplinary subject because all the contents related to humans, human health and sound environment come under this subject.
Explanation: In education or academia health, population and environment have different origins but when combined together make a multidisciplinary subject.
