Tuesday, September 3, 2013

Abstract: Ecological pyramid

Abstract: Ecological pyramid Category: Biology, botany, anatomy
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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