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Which productivity statement about produ...

Which productivity statement about productivity is correct ?

A

Primary productivity of all ecosystems is a constant

B

The annual net primary productivity of the whole of the biosphere is 17 billion tons (dry weight) of organic matter

C

Net primary produtivity is the amount of biomass available for consumption by carnivores

D

Primary productivity depends on the plant species inhabiting a particular area

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The correct Answer is:
D
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ARIHANT NEET-ECOSYSTEM-Exercises C Medical entrances gallery (collection of questions Asked in NEET & Various Medical Entrance Exams)
  1. Conversion of organic nitrogen into ammonia, N(2) gas into ammonia, ni...

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  2. Given below is a simplified model of phosphorus cycling in a terrestri...

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  3. Which productivity statement about productivity is correct ?

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  4. Which of the following statement(s) regarding energy flow is/are false...

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  5. Lindemann for the first time gave energy transfer law, which states th...

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  6. Identify the incorrect statements from the following.

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  7. Which one of the following processes during decomposition is correctly...

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  8. Which one of the following organism from the decomposers ?

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  9. In a stable ecosystem, which of the following limits the number of tro...

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  10. Energy and nutrients enter a community by

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  11. Natural reservoir of phosphorus is

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  12. Secondary productivity is rate of formation of new organic matter by:

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  13. Trophic level of food chain having greatest amount of energy is

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  14. The upright pyramid of number is absent in

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  15. Maximum contribution of oxgyen is got from

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  16. The biomass available for consumption by the herbivores and the decomp...

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  17. In an ecosystem , at a particular time, standing crop includues

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  18. In a pyramid of biomass, if the total dry weight (kg//m^(2)) of primar...

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  19. Given below is an imaginary pyramid of numbers. What could be one of t...

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  20. Which one of the following is not a functional unit of an ecosystem

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