I would assume that it would be a "factor" or "health determinant"
Answer: B
Explanation:
After a muscle fiber is stimulated by a nerve signal, a release of stored calcium ions leads to muscle contraction.
Common electrolytes include sodium, chloride, magnesium, calcium and potassium.
Sodium and potassium help in the generation of nerve impulses while calcium aids muscle contraction. Sodium is also actively involved in the movement across cell membranes.
A disorder that involves recurrent, irresistible urges to pull out body hair.
Answer - Blood Flow
Reasoning - Insulin is used through out and mainly in the blood stream which relies it to stabilize through out the flow of the body