those are nucleotides
since all three of them contain deoxyribose (because there's only one hydroxil group) they are DNA nucleotides
the first nucleotide has cytosine as it's nitrogenous base
the second nucleotide has adenine as it's nitrogenous base
the third nucleotide has thymine as it's nitrogenous base
<em>Answer: Chromosomes </em>
<em>Depending on the organism, the number of chromosomes in a cell may change.</em>
Hey! The answer is: Collect data using a prototype.
I have a screenshot attached as well.
I hope this helps you!
Good luck! :)
C. Mass
Mass is the amount of matter in an object.
Happy to help. Please mark as brainliest!