What do the levels of the food web represent?

Producers->plants

Consumers->herbivores

Secondary Consumers->carnivore that feeds on herbivores

Tertiary Consumers->feed on carnivores

Sun=energy source for producers

decomposers are the greatest in amount of biomass, serving as the foundation of the biomass pyramid.

Ordered by increasing biomass from lowest to highest by a total energy conversion being an average of 10% total energy conversion in each succeeding biomass classification. to understand this, pretend the decomposers have a biomass of 100,000, each level of biomass above decomposers, is divided by 10 to show approximate (obviously not nearly infallible) biomass value.

Decomposers X 100,000 (mushrooms, decomposing bacteria etc.)

producers X 10,000

consumers X 1,000

secondary consumers X 100

tertiary consumers X 10

there ya have it.. just rambled, hopefully this helped!