Calcium is the element most responsible for the material found in teeth. Calcium helps keep you teeth in good condition and makes the jaw strong to keep the teeth in place. Calcium can be given by many food such as cheese and rice.
D) In DNA, adenine, thymine, guanine, and cytosine join together and carry all of the genetic information. RNA is made from adenine, uracil, cytosine, and guanine and is used to make proteins.
