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What explanation could you offer for the changes seen in P/R ratio of a pioneer community and the climax community? 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem What is a biogeochemical cycle? What is the role of the reservoir in a biogeochemical cycle? Give an example of a sedimentary cycle with reservoir located in earth’s crust. 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem The biodiversity increases when one moves from the pioneer to the climax stage. What could be the explanation? 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem Give two examples of artificial or mail made ecosystems. List the salient features by which they differ from natural ecosystems. 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem What will happen to an ecosystem if: (a) All producers are removed; (b) All organisms of herbivore level are eliminated; and 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem “The energy flow in the ecosystem follows the second law of thermodynamics.” Explain. 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem Given below is a list of autotrophs and heterotrophs. With your knowledge about food chain, establish various linkages between the organisms on the principle of ‘eating and being eaten’. What is this inter-linkage established known as? 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem Write a short note on pyramid of numbers and pyramid of biomass. 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem What are the three types of ecological pyramids? What information is conveyed by each pyramid with regard to structure, function and energy in the ecosystem? 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem Which of the following ecosystems will be more productive in terms of primary productivity? Justify your answer. A young forest, a natural old forest, a shallow polluted lake, alpine meadow. 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem Justify the following statement in terms of ecosystem dynamics. “Nature tends to increase the gross primary productivity, while man tends to increase the net primary productivity”. 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem A farmer harvests his crop and expresses his harvest in three different ways. (a) I have harvested 10 quintals of wheat. (b) I have harvested 10 quintals of wheat today in one acre of land. 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem The rate of decomposition of detritus is affected by abiotic factors like availability of oxygen, pH of the soil substratum, temperature etc. Discuss. 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem How do you distinguish between humification and mineralisation? 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem What are the shortcomings of ecological pyramids in the study of ecosystem? 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem What is an incomplete ecosystem? Explain with the help of suitable example. 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem Sometimes due to biotic/abiotic factor the climax remains in a particular serai stage (pre climax) without reaching climax. Do you agree with this statement? 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem Primary productivity varies from ecosystem to ecosystem. Explain. 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem In relation to energy transfer in ecosystem, explain the statement “10 kg of deer’s meat is equivalent to 1 kg of lion’s flesh”. 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem Poaching of tiger is a burning issue in today’s world. What implication would this activity have on the functioning of the ecosystem of which the tigers are an integral part? 3 years ago Shilpi98 class 12 cbse ncert exemplar ecosystem Page 1 / 5 1 2 3 4 5 Next Share: Super Globals Requests: Server: Options and Features route: community use_home_url: url: https://eanshub.com/community/ pageid:187 default_groupid: 3 2022 How Can We Help? Δ Home About Us Contact Us Privacy Policy Term of Use Copyright © 2020 Eanshub All Rights Reserved
