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 />
Answer:
protection and a mask
Explanation:
that virus is deadly and especially in a high risk groups, and it attacks lungs and nose and throat
Answer:
Mental, Social and physical health
Explanation: