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 />
Let's go to the gym together, you pick the activity:D
Answer:
seven factors that affecting death are
1. age ,sex , disease, heredity, nutritional lever, health facility,and services and health education...