Answer:
sugar
Explanation:
The sides of the stepping stool are made of rotating sugar and phosphate particles. The sugar is deoxyribose. The rungs of the stepping stool are sets of 4 sorts of nitrogen bases. Two of the bases are purines-adenine and guanine.
<span>C. Theyvare always multicellular </span>
An obligatory parasite is a parasite that can not complete its life cycle without exploiting a suitable host
