In essence, DNA is a thin and very, very long organic molecule. It is a polymer, and each of the monomers that constitute it are called

Nucleotides

Explanation:

DNA is a polymer of nucleotide monomers.

Nucleotides are made of a nitrogenous base (either adenine, thymine, guanine, or cytosine), a deoxyribose sugar, and a phosphate group.

The nucleotides are joined together by phosphodiester bonds between the sugar of one nucleotide and the phosphate group of the next.

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !

a community that experiences major changes undergoes progress