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What does the base tier of the ecologica...

What does the base tier of the ecological pyramid represent ?

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The base tier of the ecological pyramids represent the producers of first trophic level in case of three ecological pyramids
(i) Pyramid of number`" " `(ii) Pyramid of biomass
(iii) Pyramid of energy
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NCERT EXEMPLAR-ECOSYSTEM-Ecosystem
  1. Which of the following is an ecosystem service provided by a natural e...

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  2. Name an organism found as secondary carnivore in an aquatic ecosystem.

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  3. What does the base tier of the ecological pyramid represent ?

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  4. Under what conditions would a particular stage in the process of succe...

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  5. Arrange the following as observed in Vertical stratification of a fore...

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  6. Name an omnivore which occurs in both grazing food chain and the decom...

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  7. Justify the pitcher plant as a producer.

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  8. Name any two organisms which can occupy more than one trophic level in...

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  9. In the North East region of India, during the process of jhum cultivat...

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  10. Climax stage is achieved quickly in secondary succession as compared t...

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  11. Among bryophytes, lichens and fern which one is a pioneer species in a...

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  12. What is the ultimate source of energy for the ecosystems?

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  13. Is the common edible mushroom an autotroph or a heterotroph?

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  14. Why are oceans least productive?

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  15. Why is the rate of assimilation of energy at the herbivore level calle...

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  16. Why are nutrient cycles in nature called biogeochemical cycles?

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  17. Give any two examples of xerarch succession.

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  18. Define self sustainability

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  19. Given below is a figure of an ecosystem. Answer the following question...

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  20. What is common to earthworm, mushroom, soil mites and dung beetlein an...

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