寻找“食物链”的~英文~报告，论文

Of food chain is a path of the food chain to the population as a unit, contact the community in different species. The food chain in the energy and nutrients in the transfer between different biological, energy in the food chain of transmission performance for a one-way transmission, gradually descending characteristics. Few food chain, including more than six species, because the transmission of energy through every stage of a level or diet will reduce some of the so-called "mountain can not be Erhu" is the truth.

Ecosystems Although a wide variety of biological and ecological systems are playing a different role, according to their energy and material movement in the role, can be summed up as producers, consumers and the decomposition of those three categories.

Is a major producer of green plants, can create inorganic nutrient autotroph, this is the function of photosynthesis, including some of the bacteria can (such as denitrifying bacteria), the