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Karnataka Board PUCPUC Science 2nd PUC Class 12

Why is the rate of assimilation of energy at the herbivore level called secondary productivity? - Biology

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Question

Why is the rate of assimilation of energy at the herbivore level called secondary productivity?

Short/Brief Note
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Solution

It is because the biomass available to the consumer for consumption is a resultant of the primary productivity from plants.

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Chapter 14: Ecosystem - VERY SHORT ANSWER [Page 102]

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NCERT Exemplar Biology [English] Class 12
Chapter 14 Ecosystem
VERY SHORT ANSWER | Q 14. | Page 102

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RELATED QUESTIONS

What is primary productivity?


State the relation between gross and net primary productivity.


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


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


The biomes energy available for consumption by herbivores is called ______.


Which one of the following ecosystem is most productive in term of net primary production?


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


If A = Gross primary productivity, B = Net primary productivity and C = Respiration losses, then what will be the correct relation between them?


Productivity is the rate of production of biomass expressed in terms of ______.


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Primary productivity varies from ecosystem to ecosystem. Explain?


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.

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