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is the rate of production of organic mat...

____ is the rate of production of organic matter by consumers.

A

Primary productivity

B

Secondary productivity

C

Net primary productivity

D

Gross primary productivity

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The correct Answer is:
B
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Secondary productivity is the rate of formation of new organic matter by consumers.

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The biomass available for consumption to heterotrophs and the rate formation of new organic matter by consumers are defined as (a) gross primary productivity and net primary productivity respectively (b) net primary productivity and gross primary productivity respectively (c) gross primary productivity and secondary productivity respectively (d) net primary productivity and secondary productivity respectively.

Identify the correct match . 1. Stratification : Vertical distribution of different species occupying different levels . 2. Secondary productivity : Amount of biomass or organic matter produced per unit area over a time period by plant during photosynthesis . 3. Primary productivity : Rate of formation of new organic matter by consumers . 4 Decomposition : Break down complex organic matter into inorganic substances like carbon dioxide , water and nutrients

Assertion : The plant biomass which serves as the food of herbivores and decomposers is said to result from the gross primary productivity. Reason : Gross primary productivity is the rate of net production of organic meterial (biomass).

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In an ecosystem the rate of production of organic matter during photosynthesis is termed as

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AAKASH SERIES-ECOSYSTEM-EXERCISE-I (PRODUCTIVITY)
  1. Gross primary productivity minus respiration losses of an ecosystem is

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  2. The available biomass for the consumption to heterotrophs is called

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  3. Gross primary productivity is

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  4. is the rate of production of organic matter by consumers.

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

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  6. Productivity is the rate of production of biomass expressed in terms o...

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  7. The energy storage at producer level which can be consumed by herbivor...

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  8. A certain mass of living material at a particular time in each trophic...

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  9. The NPP in a plant is 100kj. What is the body mass of the secondary ca...

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  10. Which of the following is expected to have the highest value (gm//m^(2...

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  11. Which of the following statements about decomposition is incorrect?

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  12. Most important climatic factors that regulate the rate of decompositio...

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  13. The raw material for decomposition, the detritus includes

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  14. Various steps in decomposition are

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  15. Breakdown of detritus into smaller particles by earthworm is a process...

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  16. The process by which water soluble inorganis nutrients go down into th...

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  17. Degradation of detritus into simple inorganic substances by the enzyma...

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  18. Decomposition is largely

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  19. The rate of decompostion is controlled by

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  20. Decomposition is largely

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