Given the food chain: cereals -> frog grasshoppers -> snakes -> eagle.

Given the food chain: cereals -> frog grasshoppers -> snakes -> eagle.
Using the ecological pyramid rule, construct a biomass pyramid, assuming that during the development of the eagle, its mass was 5 kg

1) Since a ready-made food chain is proposed, you can immediately draw a template for an ecological pyramid: the base of the pyramid is cereals, the next level is grasshoppers, etc. (5 trophic levels).
2) At the fifth trophic level, let us designate the mass of the eagle given in the problem – 5 kg.
3) Using Lindemann’s rule, we find the biomass of organisms at the following trophic levels:
Eagle 5 kg
Snakes 50 kg
Frogs 500 kg
Grasshoppers 5000 kg
Cereals 50,000 kg