Answer:
1. Calcium is essential for muscle contraction, building strong bones and teeth, blood clotting, regulating heart beat, and fluid balance within the cells
2. Many foods are high in calcium but a few examples are Cheese, yogurt, sardines, beans, lentils, almonds, spinach, tofu, figs, milk, broccoli, and oranges.
3. Over 99% of calcium is stored in the bones and teeth, with trace amounts in the blood, muscle, extracellular fluid, and other tissues.
4. To answer this you need to share the multiple choice options
5. Calcium helps the brain use the amino acid tryptophan to make melatonin (the sleep hormone). Calcium can help you sleep.
I hope this helps, I can help you more with answer #4 if you share the options they want you to choose from