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.
Answer:
C. cell- tissue- organ- organ- system
Cajal cells are the neuromuscular type of cells conducting the slow electrical waves of small intestinal contraction during digestion.
Such are named by the man who discovered them, the worldly-famous Ràmon y Cajal.
anthropology.................................