मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Which of the following ecosystems is most productive in terms of net primary production?

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प्रश्न

Which of the following ecosystems is most productive in terms of net primary production?

पर्याय

  • Deserts

  • Tropical rain forests

  • Oceans

  • Estuaries

MCQ
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उत्तर

Tropical rain forests

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पाठ 14: Ecosystem - MULTIPLE CHOICE QUESTIONS [पृष्ठ ९९]

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एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 12
पाठ 14 Ecosystem
MULTIPLE CHOICE QUESTIONS | Q 6. | पृष्ठ ९९

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

How are productivity, gross productivity, net primary productivity and secondary productivity interrelated ?


State the relation between gross and net primary productivity.


What is the primary productivity of an ecosystem and how is it expressed?


Explain what does the equation given below show:

NPP = GPP – R


Answer the following question.
Describe the inter-relationship between productivity, gross primary productivity, and net productivity.


Write the relationship between productivity, gross primary productivity, net primary productivity, and secondary productivity.


Secondary productivity is rote of formation of new organic matter by ______.


How much of the net primary productively of a terrestrial ecosystem is eaten and digested by herbivores?


In the equation GPP − R = NPP R represents ______


Justify the pitcher plant as a producer.


Justify the following statement in terms of ecosystem dynamics. “Nature tends to increase the gross primary productivity, while man tends to increase the net primary productivity”.


Which of the following ecosystems will be more productive in terms of primary productivity? Justify your answer. A young forest, a natural old forest, a shallow polluted lake, alpine meadow.


The primary productivity in an ecosystem is expressed as ______.

  1. gm-2 yr-1
  2. gm-2 yr
  3. Kcal m-2 yr-1
  4. Kcal m-2

Use the information provided in the table given below to answer the following questions:

Tropic level Net Production(KJm-2y-1) Respiration (KJm-2y-1)
Top Carnivore 50 35
Carnivores 420 378
Herbivores 4490 4041
Producers 45000 40,367
  1. Calculate the gross primary productivity.
  2. Analyze the trend in the Net Production from Producers to Top Carnivore. Give a reason for your observation.

What is the rate at which biomass is synthesised by a trophic level per unit area per unit time called?


What is the relationship between Gross Primary Productivity (GPP) and Net Primary Productivity (NPP)?


In which standard units is productivity measured in terms of mass?


Which nutrient is essential for enzyme synthesis and chlorophyll production in plants?


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