Beth broke her ankle bone. the doctor gives her a brochure on foods she can eat to restore the health of her bones. which element will beth strengthen the bone?

Calcium

Explanation:

For strong bones, there are two vital nutrients which our body needs that is calcium and vitamin D. Vitamin D basically improves the absorption of the calcium and bone growth while calcium provides strength to our bones and teeth structure. Foods that are good for bone strength are milk, cheese, green leafy vegetables, soya beans, nuts etc.

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation:

sound moves fastest in solids because the molecules are tightly packed and it allows sound to vibrate