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 />
<span>The cytoskeleton helps the cell maintain
its shape and is involved in many forms of cell movement. It is also
involved in moving organelles within the cell.</span>
1. I think it is bloodstream
2. I am not sure
