For a symbiosis illustration, you could depict: - **A Lichen on a Rock

For a symbiosis illustration, you could depict: - **A Lichen on a Rock:** Draw a rock with patches of lichen growing on it. The lichen could be shown as a greenish or grayish crust on the surface of the rock. - **Cross-section of Lichen:** You could also illustrate a close-up, cross-sectional view of the lichen to show the algae and fungi together. The algae could be represented as green cells embedded within the filamentous structure of the fungi. This visual can help illustrate how the two organisms live together in a mutually beneficial relationship. Would you like to move on to the next plant association, Mutualism?