Answer:
it is also called the Musculoskeletal system
Explanation:
DNA<span> is a long polymer with deoxyribose and phosphate backbone. Having four different nitrogenous bases: adenine, guanine, cytosine and thymine. </span>RNA<span> is a polymer with a ribose and phosphate backbone. Four different nitrogenous bases: adenine, guanine, cytosine, and uracil.</span><span />
This is how vaccines are used. You introduce the antibodies in a vaccine so the person builds up an immunity and never develops the disease
