Food Chain
A food chain made by Bo and Seth
A food chain is a way of showing the relationship between organisms and their ecosystem. An organism on a food chain eats the organism that is depicted directly below it, and is eaten by the organism depicted above it. A food chain only shows one of the many interactions between organisms. This example shows the wolf eating the elk, and the elk eating the grass. This food chain exists in many coniferous forests.
Food Web
A food web some containing animals from coniferous forests
A food web is a way of showing a more complicated interaction between organisms. A food web shows many different organisms an animal eats and is eaten by. A food web can show these multiple interactions, where a food chain can show only one. This picture provides a small scale example of the complicated food web of the coniferous forest biome.
Ecological Pyramid
An ecological, or energy pyramid made by Bo and Seth
An ecological pyramid is a way of showing the feeding relationship between a group of organisms, and the transfer of energy between trophic levels (an organism's place in a food web) in an ecosystem. This ecological pyramid shows the transfer of energy of organisms found a coniferous forest. The lowest level of the pyramid requires the least energy, while the upper levels require the most.