RVPADILLA14IN RVPADILLA14IN Science Answered 2. About 90 percent of corals food are provided for by the algae that liveprovide shelter and fertilizer for the algae. This relationship betweenin their tissues. The algae provide carbohydrates while the coralsthe corals and algae is an example ofc. Parasitismd. Predationa. Mutualismb. Commensalism​