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For their energy demnds, organisms at ea...

For their energy demnds, organisms at each tropic level depend on those at the

A

Lower tropic level

B

Higher trophic level

C

Any trophic level

D

Sunlight

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The correct Answer is:
A
For their energy demans , organisms at ech trophic level depend on those at the lower tropic level.
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Explore conceptually related problems

Read the following statements. (i) Removal of tigers from an area will result in increased growth of vegetation of that area. (ii) Organisms at each trophic level depend on those at the lower trophic level for their energy demands. (iii) Food chains are sustained by producers and decomposers (iv) In a food chain , some organism like sparrow operates at one trophic level only. Select an option which shows CORRECT statements.

Consider the following for statements (1 - 4 ), select the correct option starting which ones are true (T) and which ones are false (F) (1) An orgenism at each trophic level depends on those at a higher energy demands. (2) Each trophic level has a certain mass of living material at a particular time called standing state . (3) Each trophic level has a certain mass of non-living material at a particular time called standing state . (4) The number of trophic levels in a grazing food chain is not restricted.

At each trophic level the energy value :

Assertion (A) : In a food chain members of successive higher levels are fewer in number. Reason (R ): Number of organisms at any trophic level depends upon the availability of organisms which serve as food at the lower level.

Food chains and the energy flow within an ecosystem provide an important understanding of contingencies and mutual dependencies of organisms. The given below flow chart depicts the energy flow within some members of a grassland ecosystem. The grass in the below ecosystem transducer 120,000 J of sunlight and fixes it into 12,000 J of energy. It is established that 90% of the energy of one trophic level is not passed to the next trophic level. Further assume that the energy transferred from one trophic level to the next is equally shared among the different organisms at that trophic level. Based on the above information, indicate the amount of energy that an organism C may have received from an organism from the previous trophic level.

[A] : In a food chain , membrane of successive higher levels are fewer in number . [R] : Number of organisms at any trophic level depends upon the availability of organisms which serve as food at the lower level .

Food chains and the energy flow within an ecosystem provide an important understanding of contingencies and mutual dependencies of organisms. The given below flow chart depicts the energy flow within some members of a grassland ecosystem. The grass in the below ecosystem transducer 120,000 J of sunlight and fixes it into 12,000 J of energy. It is established that 90% of the energy of one trophic level is not passed to the next trophic level. Further assume that the energy transferred from one trophic level to the next is equally shared among the different organisms at that trophic level. Which organism acts as both the secondary consumer and the tertiary consumer?

Each succesive tropic level has

A2Z-ECOSYSTEM-Section A: Topicwise Questions (topic 4:energy Flow)
  1. Birds and fishes belong to tropic level

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  2. Cow and zooplanktons lies at tropic level

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  3. For their energy demnds, organisms at each tropic level depend on thos...

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  4. The standing crop of any tropic level is measured as the

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  5. The biomass of a species is expressed in terms of

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  6. Measurement of biomass is more accurate in terms of

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  7. Which one of the following has the largest population in a food chain ...

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  8. The second tropic level in the lake is

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

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  10. How much of the net priamary productivity of a terrestrial ecosystem i...

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  11. If the crbon atom fixed by producers already have passed through three...

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  12. What will happen to a well growing herbaceous plant in the forest if i...

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  13. Which of the following is not a producer ?

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  14. Decomposers like fungi and bacteria are Choose the correct answer : ...

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  15. If all the plants are to die, all the animals will also die due to def...

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  16. Food chain in which microorganisms breakdown the food formed by primar...

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  17. Pick up the correct food chain:

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  18. Flow of energy declines as it passes from food chain explained by

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  19. Carnivores represent

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  20. Which can be the tropic level of a loin in a forest ecosystem ?

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