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Assertion: Ecological pyramids cannot ex...

Assertion: Ecological pyramids cannot explain all vital functions of any ecosystem.
Reason: Pyramids actually do not explain the role of organisms working at more than one trophic level.

A

If both Assertion and Reason are true and the reason is the correct explanation of the assertion, then mark (1).

B

If both Assertion and Reason are true but the reason is not the correct explanation of the assertion, then mark (2)

C

If Assertion is true but Reason is false, then mark (3).

D

If both Assertion and Reason are false, then mark (4)

Text Solution

Verified by Experts

The correct Answer is:
B
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Consider the following statements and select the correct option stating which ones are true (T) and which ones are false (F). (i) Pyramid of biomass is upright in the forest ecosystem and inverted in the grassland ecosystem. (ii) Pyramid of numbers is inverted in grassland and upright in aquatic ecosystem. (iii)Pyramid of energy depicts the rate of energy flow or productivity at successive trophic levels . (iv) Ecological pyramids have no place for detritivores and decomposers though they play an important role in an ecosystem.

CENGAGE BIOLOGY ENGLISH-ECOSYSTEM-ARCHIVES (CHOOSE THE CORRECT OPTION)
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  2. Which one of the following ecosystem types has the highest annual net ...

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  3. Quercus species are the dominant component in

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  4. Study the following statements regarding food chains and select the co...

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

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

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  7. Which one of the following types of organisms occupy more than one tro...

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  8. The correct sequence of plants in a hydrosere is

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  9. Study the four statements given below and select the two correct ones ...

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

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  11. Which one of the following is one of the characteristics of a biologic...

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  12. Which of the following representations shows the pyramid of numbers i...

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  13. Which one of the following statements for pyramid of energy is incorre...

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  14. Mass of Living matter at a trophic level in an area at any time is c...

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  15. Identify the possible link ''A'' in the following food chain Plant ...

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  16. In an area where DDT had been used extensively the population of birds...

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  17. The upright pyramid of number is absent in

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  18. In the pyramid of numbers find out the correct possibilities

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  19. Which one of the following is not a functional unit of an ecosystem

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  20. Which one of the following is not a gaseous biogeochemical cycle in ec...

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  21. Pheretima and its close relatives derive nourishment from

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