Which of the following best describes the flow of energy in the Everglades food web shown below?
Diagram for an everglades food web. The food web contains the following organisms: American alligator, egret, raccoon, carp, Key deer, insects, Southern leopard frog, mangrove, and sawgrass. Mangrove is at the bottom of the food web, with arrows pointing to Key deer and insects. Sawgrass is also at the bottom of the web, with an arrow pointing to insects. Key deer, insects and Southern leopard frog are on the next level up. The Key deer has an arrow pointing to American alligator. The insects point to egret, carp, and Southern leopard frog. The Southern leopard frog points to the American alligator and the raccoon. The egret, carp and raccoon all points upward toward the American alligator. The carp also points to the egret. The American alligator is at the top of the food web.
Sawgrass → insects → Southern leopard frog → raccoon → American alligator; about 90 percent of the energy in one trophic level is transferred to the next trophic level.
Mangrove → insects → Southern leopard frog → raccoon → American alligator; about 10 percent of the energy in one trophic level is transferred to the next trophic level.
Egret → carp → insects → sawgrass; about 90 percent of the energy in one trophic level is transferred to the next trophic level.
American alligator → key deer → insects → mangrove; about 10 percent of the energy in one trophic level is transferred to the next trophic level.