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Gross primary productivity is the rate o...

Gross primary productivity is the rate of production of______during photosynthesis.

A

oxygen

B

chlorophyll

C

carbon dioxide

D

organic matter

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The correct Answer is:
D
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Select the correct combination of statements regarding the characteristics of productivity : I. The rate of biomass production is called productivity and is expressed in terms of kcal m^(-2) II. Gross primary productivity is rate of production of biomass during photosynthesis II. Gross primary productivity minus respiration loss is called net primary productivity IV. Primary productivity depends only on the plant species inhabiting a particular area. The correct statements are

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).

The rate of biomass production and the rate of production of organic matter during photosynthesis are called respectively:

Primary productivity is measured in terms of

Highest rate of primary productivity is found in

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

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

GRB PUBLICATION-ECOSYSTEM -EXEMPLAR PROBLEMS
  1. Gross primary productivity is the rate of production ofduring photosyn...

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  2. Decomposers like fungi and bacteria are: i. autotrophs ii. heter...

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  3. The process of mineralisation by microorganisms helps in the relase of

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

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  5. An inverted pyramid of biomass can be found in which ecosystem?

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  6. Which of the following is not a producer?

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  7. Which of the following ecosystems is most productive in terms of net p...

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  8. Pyramid of numbers is

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  9. Approximately how much of the solar energy that falls on the leaves of...

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  10. Among the following where do you think the process of decomposition wo...

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  11. How much of the net primary productivity of a terrestrial ecosystem is...

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  12. During the process of ecological succession, the changes that take pla...

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  13. Climax community is in a state of

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  14. Among the following biogeochemical cycles, which one does not have los...

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  15. The sequence of communities of primary succession in water is

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  16. The reservoir for the gaseous type of bio-geo chemical cycle exists in...

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  17. If the carbon atoms fixed by producers already have passed through thr...

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  18. Which of the following type of ecosystem is expected in an area where ...

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  19. The zone at the edge of a lake or ocean which is alternatively exposed...

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  20. Edaphic factor refers to

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  21. Which of the following is an ecosystem service provided by a natural e...

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