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Short Answer TypeWhat is meant by sedimentary cycle?
Draw a simplified model of phosphorus cycle in terrestrial ecosystem.
One Word AnswersLong Answer TypeThe structural component of an ecosystem may be classified under two main types :
(i) Biotic components
(ii) Abiotic components
Biotic components comprise the living organisms present in an ecosystem. These include plants, animals and micro-organisms (bacteria and fungi). The biotic components of an ecosystem has been classified into three groups :(i) Producers (Green plants)
(ii) Macroconsumers (Usually animals
(iii) Microconsumers or decomposers (organisms like bacteria and fungi).
Abiotic components consist of the non living components like light, temperature, water, oxygen, carbon, nitrogen and minerals. Various important abiotic factors have been classified as follows :
(i) Climatic factors. These include light, temperature, precipitation, atmospheric humidity and wind.
(ii) Topographic factors. These include altitude, surface slope and exposure, etc.
(iii) Edaphic factors. These include soil and substratum.
Draw a flow diagram showing typical food chain with energy flow and cycling of materials. Give a few examples of food chains.
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