Food Chain And Food Web Class 10. Each step or division in food chain which is characterized by a particular method of obtaining food is called trophic level. Thus, the energy available to mice will be 10% of 100 j, which is 10 j.

Food chain is one of the most interesting topics of science and elucidates upon how every living being is connected together in an ecosystem. Most organisms in food web have different populaces of producer species which are eaten by any number of consumer organisms. How food chains and food webs represent the flow of energy and matter.

How energy is transferred through food chains and food webs via producers, primary and secondary consumers, predator, prey and decomposers.

Applying the 10% law to the above food chain: The producers (green plants) are at the first tropic level. Important facts •in a food chain each organism obtains energy from the one at the level below. Out of the energy consumed by an organism at a particular trophic level, 90% is utilised for its own need and rest 10% is left for the organism of the next trophic level.