In ecology, the trophic level is the position that an organism occupies in a food chain - what it eats, and what eats it. Wildlife biologists look at a natural "economy of energy" that ultimately ...

This is an example of a food chain: ... Calculate the efficiency of the transfer of energy between each trophic level by completing the table: Trophic level: Organism: Total biomass (kg) ...

Although a transfer efficiency of 0.1 between consecutive trophic levels is commonly assumed, values of 0.2 and higher are also used in trophic models of aquatic ecosystems 21.

Save guides, add subjects and pick up where you left off with your BBC account. The total biomass within the phytoplankton is 14.6 kg. The total biomass within the zooplankton is 1.3 kg. What is ...