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.
Answer:
Time-31 minutes. Push- ups, sit-ups, and crunches. Moderate. Cardiovascular and Muscular.
Explanation:
Just put this in what you have to do. Put the date down. Just put the rest down like time when you started. This activity lasted 31 minutes.
D I am guessing is the most correct.
