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Consider the following statements conern...

Consider the following statements conerning food chains
(i) Removal of 80% tigers from an area resulted in greatly increased growth of vegetation
(ii) Removal of most of the carnivores resulted in an increased population of deers
(iii) The length of food chains is generally limited to 3 - 4 trophic levels due to energy loss
(iv) The length of food chains may vary from 2 to 8 trophic levels
Which two of the above statements are correct?

A

a&b

B

b&c

C

c&d

D

a&d

Text Solution

Verified by Experts

The correct Answer is:
C
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Biosphere is a global ecosystem composed of living organisms and abiotic factors from which they derive energy and nutrients. And ecosystem is defined as structural and functional unit of the biosphere comprising of living and non-living environment that interact by means of food chains and chemical cycles resulting in energy flow, biotic diversity and material cycling to form a stable, self-supporting system Consider the following statements concerning food chains: (i) Removal of 80% tigers from an area resulted in greatly increased growth of vegetation (ii) Removal of most of the carnivores resulted in an increased population of herbivores. (iii) The length of the food chains is generally limited to 3 – 4 trophic levels due to energy loss (iv) The length of the food chains may vary from 2 to 8 trophic levels Which two of the above statements are correct?

Consider the following statements concerning food chain : ( a) removal of 80% tigers from an area resulted in greatly increased growth of vegetation ( b) removal of most of the carnivores resulted in an increased population of deers ( c) the length of food chain is generally limited to 3-4 trophic levels due to energy loss ( d) the length of food chain may vary from 2-8 trophic levels

Study the following statements regarding food chains and select the correct ones. (i) Removal of 80% tigers from an area resulted in greatly increased grwoth of vegetation. (ii) Removal of most of the carnivores resulted in an increased population of deers. (iii) The lenght of food chains is generally limited to 3-4 trophic levels due to energy loss. (iv) The lenght of food chains may vary from 2 to 8 trophic levels.

Which two of the following statements about food chains are correct ? (a) Removal of 80% tigers resulting in increased growth of vegetation. (b) Removal of most carnivores resulted in increased population of deer. (c) Length of food chain is limited to 3-4 tropic levels due to energy loss. (d) Length of food chain may vary from 2-3 tropic levels.

Generally the food chain has how many trophic levels

Discuss the energy flow in a food chain formed of three trophic levels.

AAKASH INSTITUTE-ECOSYSTEM-Assignment (Section C)
  1. Which one of the following types of organisms occupy more than one tro...

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  2. About 70% of total global carbon is found in

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  3. Consider the following statements conerning food chains (i) Remova...

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  4. The slow rate of decomposition of fallen logs in nature is due to thei...

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  5. Which one of the following ecosystem types has the highest annual net ...

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  6. Which one of the following is not used for construction of ecological ...

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  7. Which of the following groups is absolutely essential functional compo...

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  8. Which ecosystem has the highest gross primary productivity ?

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  9. The rate at which light energy is converted into chemical energy of or...

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

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  11. An ecosystem which can be easily damaged but can recover after some ti...

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  12. Which of the following is a primary consumer in maize field ecosystem ...

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  13. When man eats fish, which feeds on zooplankton, which have eaten small...

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  14. The dominant second trophic level , in a lake ecosystem , is

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  15. If we completely remove the decomposers from an ecosystem, its functio...

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  16. In a biotic community , primary consumers are

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  17. The 10%energy transfer law of food chain was given by

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  18. Which of the following acts as "nature's scavengers"?

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  19. Which type of animals are relatively more abundant in desert grassland...

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  20. In a terrestrial ecosystem such as forest, maximum energy is at trophi...

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