The monomers of DNA are called Nucleotides. They are made up of a 5-carbon sugar(deoxyribose), a phosphate group and a nitrogenous base bound to the sugar. Adenine makes two bonds with Thyamine whereas Cytosine makes three bonds with Guanine.
Breaking down food into smaller molecules. Absorbsion of nutriets taking place in the small intestine and elimination of waste products through the large intestine/ Colon