Question

the model below shows an energy pyramid for a wetland ecosystem.
wetland energy pyramid
third - level consumers
second - level consumers
first - level consumers
producers
which food chain reflects the trophic levels shown in the energy pyramid?
omnivore - carnivore - herbivore - autotroph
carnivore - omnivore - autotroph - herbivore
autotroph - herbivore - omnivore - carnivore
carnivore - autotroph - herbivore - omnivore

Explanation:

In an energy pyramid, producers (autotrophs) are at the base. First - level consumers are herbivores that eat producers. Second - level consumers can be omnivores (eating both plants and animals, here they eat herbivores). Third - level consumers are carnivores that eat omnivores. So the food chain should start with autotroph, then herbivore, then omnivore, then carnivore.

Answer:

autotroph → herbivore → omnivore → carnivore