The atomic number is the number of protons and the mass number is the number of protons+neutrons in the nucleus so number of neutrons = 155-55 = 100
Structurally speaking, RNA and DNA are different. One clear distinction between the two is that RNA is single stranded, while DNA is double stranded. Another way they differ is found in their nitrogen bases. The four bases for DNA are Adenine, Thymine, Cytosine, and Guanine (think, ATCG). The bases for RNA are the same, except Thymine is replaced with Uracil (think, AUCG).
Another note is that RNA polymerase is unable to detect errors in base pairings, unlike DNA polymerase, but their syntheses are both in the 5’3’ direction. Hopefully this helps you answer this question.
Nutria and zebra mussel are examples of Invasive Species.
<span>C.) A by-product of photosynthesis is carbon dioxide. This Is the correct answer. A by-Product of Photosynthesis Is Oxygen.</span>
For plants, it would be the dicot stem however if I’m wrong let me know ;)