Understand the basics of how energy moves through an ecosystem by learning about the food web and the different classifications organisms in the web.

An annual energy budget is presented for Bear Brook, a small undisturbed second-order stream in northeastern United States. The ecosystem approach, in which all input and output fluxes of potential ...

Energy transfer in ecosystems The feeding relationships that exist in an ecosystem can be shown by a food chain. The arrows represent the direction of energy flow and mean 'gets eaten by'.

Food chains show the flow of energy from one organism to another. Food chains show the feeding relationships between organisms. Food webs show how all the food chains in an ecosystem interact.