What happens if your blood turns purple? what does that mean?

Are needed by the body in large amounts in order to maintain good health

What are hormones? a. they are minerals needed for proper bone formation. b. they are the parts of the body targeted by endocrine glands. c. they are substances needed for muscle and nerve activity. d. they are substances released by endocrine glands.

Which materials are part of a person’s body composition? select three options.1. fat2. supplements3. water4. protein5. medication