Your answer is C.) The hydrogen bond between complementary nucleotides
Those rectangles are nucleotides, and the nucleotides are held together by hydrogen bonds.
Hope this helps!
The beginning should be about why you are explaining the difference and what you are comparing, make sure to include the prompt. The first middle should include the pros and cons of star bursts and all about star bursts. The second middle should be about mr. good bar, and the third middle should be about them both toghether like seeing which ones better. Then in the end just conclude it and state which one is better.
Bacteria can be transmitted by contact, ingestion, breathing in, and can also get inside open cuts in the skin. viruses ingested, air born which means you can breathe it in, you coming in contact with someone or something infected by the virus. you can also contract it from your environment in some cases.