Recent questions tagged ecosystem

What is hydrarch?

asked Apr 10, 2019 by priyanka.clay6

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What is xeroarch?

asked Apr 10, 2019 by priyanka.clay6

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Give an account of energy flow in an ecosystem.

asked Apr 10, 2019 by priyanka.clay6

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Describe the major components of ecosystems.

asked Apr 10, 2019 by priyanka.clay6

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In general all pyramids are upright. Explain. What are the exceptions to this generalization?

asked Apr 10, 2019 by priyanka.clay6

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Justify the statement succession and evolution would have been parallel processes at that time when life started on earth.

asked Apr 10, 2019 by priyanka.clay6

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Describe pond as an ecosystem

asked Apr 10, 2019 by priyanka.clay6

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What are ecological pyramids? Mention its limitations.

asked Apr 10, 2019 by priyanka.clay6

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Give account of factors affecting the rate of decomposition.

asked Apr 10, 2019 by priyanka.clay6

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Detrivores like earthworm are involved in the process of decomposition of dead plants and animals. Describe the different steps involved in the process of decomposition.

asked Apr 10, 2019 by priyanka.clay6

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Ecosystems should carry a hefty price tag for its various services. Enlist six of them.

asked Apr 10, 2019 by priyanka.clay6

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Both carbon and phosphorus cycles are biogeochemical cycles but they differ in three aspects. List them.

asked Apr 10, 2019 by priyanka.clay6

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Schematically show the flow of energy in a grazing food chain from the sun.

asked Apr 10, 2019 by priyanka.clay6

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Why is there a restriction on trophic levels in a grazing food chain? Is there such a limitation in the detritus food chain? Explain.

asked Apr 10, 2019 by priyanka.clay6

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What characteristic features are seen in Ecological succession?

asked Apr 10, 2019 by priyanka.clay6

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Define ecological succession. What is sere ?

asked Apr 10, 2019 by priyanka.clay6

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As succession proceeds the type and number of animals and decomposers also change.

asked Apr 10, 2019 by priyanka.clay6

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Name the pioneers and climax of primary succession in water and on rocks.

asked Apr 10, 2019 by priyanka.clay6

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Why is secondary succession faster than primary succession?

asked Apr 10, 2019 by priyanka.clay6

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What is the importance of humus?

asked Apr 10, 2019 by priyanka.clay6

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Define standing crop? How is it measured?

asked Apr 10, 2019 by priyanka.clay6

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Why Phosphorus cycle is called an imperfect cycle, while Carbon and Nitrogen cycle are perfect ?

asked Apr 10, 2019 by priyanka.clay6

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Mention two factors by which productivity is limited in an aquatic ecosystem.

asked Apr 10, 2019 by priyanka.clay6

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What are the differences between detritus and grazing food chains?

asked Apr 10, 2019 by priyanka.clay6

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Why is the length of a food chain in an ecosystem generally limited to 3-4 trophic levels?

asked Apr 10, 2019 by priyanka.clay6

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Gaseous nutrient cycle and sedimentary nutrient cycles have their reservoir. Name them. Why is a reservoir necessary?

asked Apr 10, 2019 by priyanka.clay6

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Differentiate between primary succession and secondary succession.Which one occurs faster?

asked Apr 10, 2019 by priyanka.clay6

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Give an example of an ecological pyramid which is always upright. Justify your answer.

asked Apr 10, 2019 by priyanka.clay6

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Given below is a simplified model of phosphorus cycle. Write down the natural reservoir of phosphorus and also the processes that put in phosphorus to the soil.

asked Apr 10, 2019 by priyanka.clay6

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Given below is the primary hydrarch succession. Bring out the missing sere stages in the process.

asked Apr 10, 2019 by priyanka.clay6

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What are the limitations of ecological pyramids?

asked Apr 10, 2019 by priyanka.clay6

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What is the effect on decomposition rate if :

asked Apr 10, 2019 by priyanka.clay6

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Give an example of an ecological pyramid which is always upright. Justify your answer.

asked Apr 10, 2019 by priyanka.clay6

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"Decomposition is an oxygen requiring process" comment.

asked Apr 10, 2019 by priyanka.clay6

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"Flow of energy is unidirectional but nutrient flow is in a cycle". Give reason.

asked Apr 10, 2019 by priyanka.clay6

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How does the man made ecosystem differ from the natural ecosystem?

asked Apr 10, 2019 by priyanka.clay6

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What is stratification in a forest?

asked Apr 10, 2019 by priyanka.clay6

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How is a food web formed?

asked Apr 10, 2019 by priyanka.clay6

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Which metabolic process causes a reduction in the Gross Primary Productivity?

asked Apr 10, 2019 by priyanka.clay6

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If we count the number of insects on a tree and number of small birds depending on those insects as also the number of larger bird eating the smaller, what kind of pyramid of number would we get?

asked Apr 10, 2019 by priyanka.clay6

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Decomposition is faster if deteritus is rich in nitrogen and water soluble substance like sugars. When is decomposition slower?

asked Apr 10, 2019 by priyanka.clay6

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Write the equation that helps in deriving the net primary productivity of an Ecosystem

asked Apr 10, 2019 by priyanka.clay6

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Sedimentary cycle is quite different from a gaseous cycle with respect to its reservoir. Bring out the difference.

asked Apr 10, 2019 by priyanka.clay6

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In burnt out Forests and flooded lands succession takes place faster. Why?

asked Apr 10, 2019 by priyanka.clay6

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As succession proceeds the numbers and types of animals and decomposers also change. How?

asked Apr 10, 2019 by priyanka.clay6

1 answer

The detritus food chain and grazing food chain differ. How?

asked Apr 10, 2019 by priyanka.clay6

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Can temperature regulate the rate of decomposition how?

asked Apr 10, 2019 by priyanka.clay6

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Detritus contribute to the biogeochemical cycles, how?

asked Apr 10, 2019 by priyanka.clay6

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All the primary productivity is not available to the herbivore,give one reason.

asked Apr 10, 2019 by priyanka.clay6

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“The energy flow in an ecosystem follows the second law of thermodynamics”. Explain.

asked Jul 11, 2017 by pady_1

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