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What is net primary productivity ?...

What is net primary productivity ?

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It is the building of biomass or storage of energy by green plants (producers) in a unit time and area. `P_(n) = P_(g) - R`.
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PRADEEP-ECOSYSTEM-short answer question
  1. Name the type of food chains responsible for the flow of larger fracti...

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  2. The number of trophic levels in an ecosystem are limited. Comment.

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  3. What is net primary productivity ?

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  4. Distinguish between upright and inverted pyramid.

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  5. Why the pyramid of energy is always upright ? Explain.

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  6. Differentiate between two different types of pyramids of biomass with ...

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  7. Construct an age pyramid which reflects a stable growth status of huma...

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  8. How are productivity, gross productivity, net primary productivity and...

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  9. Define an ecosystem. Give a few instances of an ecosystem.

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  10. All the solar energy trapped by green plants ultimately returns to the...

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  11. Explain the term pyramid of biomass.

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  12. Explain the 10% law.

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  13. Why is the concept of a food web more real ecologically than the conce...

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  14. What are the basic differences between community, ecosystem and biome ...

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  15. Explain the term 'stratification' in relation to a tropical rain fores...

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  16. Explain the concept of pyramids of numbers.

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  17. Give an account of ecological succession.

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  18. Describe the various kinds of food chains in a food web.

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  19. What are biogeochemical cycles ? Mention their two kinds, giving insta...

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  20. Define the terms : nitrate assimilation, ammonification, nitrification...

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