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.
Biological 'superkingdoms<span>' are </span>known<span> as Domains.</span>
Coevolution occurs when two or more species reciprocally affect each others evolution. The two species in question exerts selective pressure on each other thereby affecting each others evolution. The relationships that might exist include mutualism, predator-prey relationship and host-parasite relationship.
All this gradually shape the two species due to adaptations for survival and competitions.
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Explanation:
The answer is C. I looked it up and read about it , i do not copy and paste unless u want me to.
