I filled out a few boxes for you to start you off. I also gave you a direct research sources for some animals that will take you to the necessary information.
This is what I have so far as examples for you. Again, I said I wouldn't do all of your work for you, however, I will help you through your research and graph.
The answer is B. molecule, I know becuase I just took the test and got 100% Hope it helps
Where is the picture? Is there a picture?