I think it may be conservation.
The sides of the ladder are made of alternating sugar<span> and </span>phosphate<span> molecules. The </span>sugar<span> is </span>deoxyribose<span>. The rungs of the ladder are pairs of 4 types of nitrogen bases. Hope this answers the question. Have a nice day.</span>
The word you are looking for is loam
Answer:
Since the nucleus contains protons and neutrons, most of the mass of an atom is concentrated in its nucleus.
Explanation: