Food Chains and Food Webs

A food chain shows the feeding relationship between different living organisms in a particular environment or habitat.

* Both represent how energy travels from one organism to another. * Both represent the feeding relationship between different organisms.

Food webs are several interconnected food chains containing many organisms. Food chains follow a linear pattern & food webs are a maze of connections.

The trophic level of an organism is the position it occupies in a food chain. The Energy Transfer during feeding decreases as trophic levels increase.

Organisms can be organised into different trophic levels: producers, primary consumers, secondary consumers, tertiary consumers, quaternary consumers.