GCSE level School biology notes: Ecosystems: Pyramids of biomass & transfer efficiency

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INDEX of notes on food chains, food webs, trophic levels, pyramids of biomass, energy transfer efficiency and pyramids of numbers

Doc Brown's school biology revision notes on biomass and pyramids

Sub-index for pages on biomass, pyramids, energy transfer

(1) Introduction to energy and biomass transfer in food chains

(2) The crucial role of photosynthesis in the formation of biomass

(3) Important definitions, food chains, trophic levels and decomposers - examples explained

(4) Food webs and interdependence - examples explained

(5) Pyramids of numbers - how to construct them - examples explained

(6) Pyramids of biomass, construction, examples explained, why biomass loss in a food chain?

(7) Calculations of efficiency of biomass/energy transfer


See also Ecosystems: biotic & abiotic factors, interactions between organisms, interdependency

and Biodiversity, land management, waste management, maintaining ecosystems - conservation

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See also

Carbon cycle, nitrogen cycle, water cycle and decomposition  gcse biology revision notes

Ecosystems - biotic & abiotic factors - interactions between organisms - interdependency

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