Download the abstract In terrestrial ecosystem biomass producing more than biomass consuments first order consuments second order than the second order consuments, etc. In aquatic ecosystems pyramid biomass can have a reverse view. Food chains are short and long. An example of a short chain with one producer and two by consumers: the grass - a rabbit - a fox. An example of a long chain including consuments 5th order: common pine - aphid - ladybug - spiders - insectivorous birds - birds of prey. Sometimes the food chain is a reduction of size of the animals and increase their numbers at each trophic level: a herbivore mammal - living on its parasites (eg, fleas) - leptomonady (protozoa in the blood of fleas).... If you get more information, visit our site: BEST ESSAY CHEAP
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