1) Choose the setting, you chose Marine
2) Find two animals that interact withe each other in that setting. You can use producer/consumer which would be algae and an algae eating fish,,, predator/prey which would be a shark and a fish,,, or parasite/host which would be a leech and a fish. You can choose one of those.
3) Look up information on how those two animals interact. How they act in the wild.
4) Draw the boxes for your cartoon.
5) Make a title for your cartoon.
6) Draw pictures explaining how the animals interact.
7) Draw word boxes so you can explain how they are interacting.
8) Write a paragraph about what kind of relationship the animals have (one of the 3 choices you were given)
I hipe this helps and if you are still confused please answer back with what you are still confused about!