C. I am not sure what the other ones are, but I was taught this one is where you eat a lot then throw up and anorexia is where you don't eat at all
If you mean a specific system then the reproductive system...but i haven't the slightest idea as to anything else to do with your question...
Answer:
False
Explanation:
Cytosine, guanine, thymine, and adenine are collectively referred to as nitrogenous bases. These are not phosphates. The cytosine, guanine, thymine, and adenine are the four different types of nitrogenous bases. These nitrogenous bases are present in the deoxyribonucleotides. Cytosine and thymine are smaller in structure and have single ring structures. These are collectively called pyrimidines. On the other hand, adenine and guanine are the larger nitrogenous bases each with double ring structures. They are collectively called purines
