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Explain the characteristics of food web....

Explain the characteristics of food web.

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Characteristics of a food web :
(i) It is network formed by interlinking of a number of food chains.
(ii) It provides availability so even allows multiplication of endangered species.
(iii) It prevents overpopulation of species with high reproduction rate.
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MODERN PUBLICATION-ECOSYSTEM -REVISION EXERCISES (III. SHORT ANSWER TYPE - I QUESTIONS) (A. QUESTIONS FROM STATE BOARD EXAMINATIONS)
  1. What is food chain ? Draw a food chain.

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  2. What is Ecological efficiency ? Explain its significance ?

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  3. Explain the characteristics of food web.

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  4. Write notes on : (i) Food chain (ii) Trophic level.

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  5. State differences between grazing food chain and detritus food chain.

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  6. Write four characteristics of food chain.

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  7. Nutrients are never lost from the ecosystems . Write about (a) Gaseous...

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  8. Ecological pyramids are usually upright. Meanwhile some pyramid of bio...

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  9. Name various biomes of India.

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  10. Why earthworms are referred to as Farmer's friends and what is the rol...

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  11. What do you mean by gaseous and sedimentary nutrient cycle ? Give an e...

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  12. Briefly explain 10% law of energy transfer in an ecosystem.

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  13. Draw a pyramid of biomass in a terrestrial habitat.

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  14. What is meant by ecological pyramid ? Name the different types of ecol...

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  15. Differentiate between production and decomposition.

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  16. Define productivity . Mention the two types of productivity.

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  17. What is ecological pyramid ? Draw the pyramid of numbers.

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  18. Write a short note on ecological succession on a bare rock.

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  19. Differentiate between primary and secondary succession. Provide one ex...

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  20. Why is pyramid of biomass in sea generally inverted ? Explain.

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