A number of alive organisms in which one organisms eat the predecessor on a circuit refers to as a food circuit and in turn appear eaten by those who follows them. The basic functions of a food circuit - carry of substances and energy in ecological systems.
Food circuits are crossed, forming a food network (a trophic network).
Owl jackal
Grass rabbit fox
wolf
Biotichecal carry is carried out on a circuit of a feed and as a result movings of animals. Biotichecal the mineralization prevails during decomposition of organic substances.
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