Identify the choice that best completes the statement or answers the question. Lichens in a forest ecosystem are made up of fungi and algae living together. The fungi
benefit from food produced by the algae. The algae benefit from nutrients and water
absorbed by the fungi. Which of the following relationships in different ecosystems
is most similar to the interaction of the fungi and algae?
O competition between algae and aquatic plants
commensalism between birds and trees
mutualism between fungi and ants
parasitism between fungi and humans