makes a ribonucleotide molecule slightly heavier than a deoxyribonucleotide molecule, while the volumes occupied are

The oxygen atom at the 2′ position makes a ribonucleotide molecule slightly heavier than a deoxyribonucleotide molecule, while the volumes occupied are essentially equal.

Explanation:

Ribonucleotides, also known as RNA nucleotides, are the building block of ribonucleic acid (RNA), which contain ribose sugar as a sugar component, a phosphate and one base that can be adenine (A), uracil (U), guanine (G) or cytosine (C). Ribonucleotides are considered molecular precursors of nucleic acids. RNA nucleotides contain oxygen in the second carbon of the pentose ring. Deoxyribonucleotides are the building block of deoxyribonucleic acid (DNA), which contains deoxyribose sugar without oxygen in the second carbon of the pentose ring, a phosphate and one base that can be A, G, C or thymine (T), this last instead of U.

the answer is c) an oak tree

it also supports my hypothesis. if you rest first you can squeeze the clothespin more times. from the data i collected the average of the eight people concluded exercise makes your muscles more fatigued and less able to squeeze the clothespin compared to resting before squeezing.