(par 3. 4.1) Types of food pyramids
The Flow of Energy in Ecosystems – Productivity, Food Chain, and Trophic Level As was explained in the last subchapter, the flow of energy is an essential feature of every ecosystem, since all living systems are open systems. They depend on a steady supply of energy in order to keep up the structural organization and […]
(par 3. 4.1) The Food Web
http://en.wikipedia.org/wiki/Food_web From Wikipedia, the free encyclopedia A food web (or food cycle) is the natural interconnection offood chains and generally a graphical representation (usually an image) of what-eats-what in an ecological community. Another name forfood web is a consumer-resource system. Ecologists can broadly lump all life forms into one of two categories called trophic levels: 1) theautotrophs, and 2) theheterotrophs. To maintaintheir bodies, grow, […]