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The mass of living material at a trophic...

The mass of living material at a trophic level at a particular time is called

A

Standing state

B

Net primary productivity

C

Standing crop

D

Gross primary productivity

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Mass of living matter at a trophic level in an area at any time is called:

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What are trophic levels?

Fill in the blanks with a suitable word . i. The vertical distribution of different species occupying different levels is called ......a....... ii. The breakdown of detritus into smaller particles is called .......b....... iii. In each trophic level , a certain mass of living material at a particular time is called .......c.......

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Total amount of living material at the various trophic levels of a food chain is depicted by pyramids of

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Choose incorrect option w.r.t. amount of living material present in different trophic levels at a given time

ALLEN-ORGANISM & ENVIRONMENT AND DEMOGRAPHY-EXERCISE-II
  1. Which one of the following is an example of mutualism ?

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  2. Which of the following is true:-

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  3. Cryopreservation of gametes of threatened species in viable and fertil...

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  4. High value of BOD (Biochemical Oxygen Demand) indicates that

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  5. The UN Conference of Parties on climate change in the year 2011 was he...

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  6. Rachel Carson's famous book "Silent Spring" is related to

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  7. Most animals are tree dwellers in a

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  8. In which of the following both pairs have correct combination?

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  9. Vertical distribution of different species occupying different levels ...

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  10. The mass of living material at a trophic level at a particular time is...

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  11. In an ecosystem the rate of production of or- ganic matter during phot...

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  12. Secondary Succession takes place on/ in

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  13. The following graph depicts changes in two populations (A and B) of he...

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  14. Most animals that live in deep oceanic wa- ters are

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  15. An association of individuals of different species living in the same ...

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  16. Eutrophication of water bodies leading to killing to fishes is mainly...

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  17. Acid rain is caused by increase in the atmo- ,spheric concentration of

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  18. Increase in concentration of the toxicant at successive trophic levels...

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  19. Which of the following is not a cause for loss of biodiversity

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  20. The figure is showing relative constibution of various green house gas...

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