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(a) What is a trophic level in an ecosys...

(a) What is a trophic level in an ecosystem ? What is 'standing crop' with reference to it?
(b) Explain the role of the 'first trophic level' in an ecosystem.
(c) How is the detritus food chain connected with the grazing food chain in a natural ecosystem ?

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PRADEEP-ECOSYSTEM-Long answer question
  1. Write a note on coral reefs.

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  2. Distinguish between : Gaseous and sedimentary types of nutrient cyclin...

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  3. How is the biosphere maintained ?

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  4. Explain the oxygen cycle in nature.

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  5. What is meant by the term 'cycles of matter' ? Explain the carbon or n...

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  6. What is meant by a sedimentary cycle ? Depict diagrammatically the pho...

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  7. Add suitable words in the gaps left in the following sentences : (i) E...

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  8. Describe the process of decomposition of detritus under the following ...

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  9. What will happen to an ecosystem if (a) All producers are removed ...

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  10. ”The energy flow in the ecosystem follows the second law of thermodyna...

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  11. Explain with diagrammatic representation flow of energy in an ecosyste...

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  12. Give a detailed account of decomposition in an ecosystem.

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  13. What is ecological succession? Describe the succession of plants in a ...

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  14. Describe the advantages for keeping the ecosystem healthy.

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  15. It is often said that the pyramid of energy is always upright. On the ...

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  16. (a) Taking an example of a small pond, explain how the four components...

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  17. Discuss the role of healthy ecosystem services as a pre-requisite for ...

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  18. (a) What is an ecological pyramid ? Compare the pyramids of energy , b...

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  19. (a) What is a trophic level in an ecosystem ? What is 'standing crop' ...

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  20. Draw the pyramids of biomass in sea and in a forest. Explain giving re...

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