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This Concept Map, created with IHMC CmapTools, has information related to: 12.3 ecology(Heng Ann Nie 1M1S04), 12.3EnergyFlow Through Ecosystem types of pyramid pyramid of number-show the number of orginsms at each level of the food chain. -The number of organisms decreases as go up the food chain. Advantage-The larger organism can be counted easily. Disadvantages -Problems of classifying different trophic levels organism. -Difficulty in counting large number of small organism, Trophic level:Composed all the organism that feed at particular link in food chain Food Chain:Feeding reltionship among organism.(Grazing:begin with living organism) (Detritivore:begin with dead organism) Food web:A community of organisms with interrelted food chains at various levels. Food Web, Pyramid of energy The amount of energy per unit area/volume that flows through trophic level in a given time period. *WHY FOOD CHAIN DOES NOT CONSIST MORE THAN 5 TROPHIC LEVEL? -Energy decrease when it transfer from a trophic level to the next trophic level. -Energy lost throgh respiration,excretion and heat to the environment. -After 5th trophic level,little energy left,this doen not support other trophic level -The phonomenon limit the food web. Energy pyramid, 12.3EnergyFlow Through Ecosystem types of pyramid Pyramid of energy The amount of energy per unit area/volume that flows through trophic level in a given time period. *WHY FOOD CHAIN DOES NOT CONSIST MORE THAN 5 TROPHIC LEVEL? -Energy decrease when it transfer from a trophic level to the next trophic level. -Energy lost throgh respiration,excretion and heat to the environment. -After 5th trophic level,little energy left,this doen not support other trophic level -The phonomenon limit the food web., compare, 12.3EnergyFlow Through Ecosystem definition Trophic level:Composed all the organism that feed at particular link in food chain Food Chain:Feeding reltionship among organism.(Grazing:begin with living organism) (Detritivore:begin with dead organism) Food web:A community of organisms with interrelted food chains at various levels., 12.3EnergyFlow Through Ecosystem types of pyramid Pyramid of biomass -The total weight usually dry weight /organism at each trophic level. -Energy transfer is insuffcient most pyramids of biomass are upright. -However,some of the pramid biomass may look inverted., compare, compare