It is false that cytoplasm is a single substance like water.
It consists of 80% water, but has other elements as well.
A nucleic acid is made of nucleotides, and nitrogenous bases are a part of a nucleotide.
DNA is a nucleic acid. The nucleotides in DNA are made up of a sugar (deoxyribose), a phosphate group, and one nitrogenous base (which will be either adenine, guanine, cytosine, or thymine).
Hope this helps!!
the nitrogen cycle involves decompisition. and the waste from the animals is then turned into nitrogen.
