Nitrogen is found in proteins, nucleic acids, and chlorophyll, and nitrogen, as a gas, is colorless, odorless, and a generally inert element. Given these facts, what is found in proteins among the following options: - Something coming from a gland - Something that causes allergies - characteristics - Transfers energy - it keeps an organism warm - Chemical energy - that material's properties - a colorless, odorless gas
A:
a colorless, odorless gas