Respuesta :

Answer:

The circle is a phosphate group, the pentagon is a 5- carbon sugar, and the rectangle is a nitrogenous base.

Explanation:

This is the structure of a nucleotide, they are very important to living organisms because they are the building blocks of nucleic acids, which are the primary information-carrying molecules in a cell. By directing protein synthesis the decide inherited characteristics of living organisms. The two main nucleic acids are DNA and RNA.