Answer:
Nitrogen is the right answer.
the answer is called photosynthesis
Answer:
A nucleotide is the basic building block of nucleic acids. RNA and DNA are polymers made of long chains of nucleotides. A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.
Explanation:
Incomplete question you must include the choices.
nervous system is the communication system of the body.