<span>It has the advantage that only when the substrate is presence the genes responsible for its metabolism are turned on.</span>
Lipids are made up of carbon, hydrogen, and oxygen. So I'm assuming A would be the best answer. Proteins are made up of carbon, hydrogen, oxygen, and nitrogen and nucleic acids are made up of carbon, hydrogen, oxygen, nitrogen, and phosphorus.
You get dizziness, headache, trouble concentrating and blurred vision
The answer to your question is both C
