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In an area where DDT had been used exten...

In an area where DDT had been used extensively, the population of birds declined significantly because:

A

Earthworms in the area got eradicated

B

Crobes were feeding exclusively on birds

C

Many eggs laid by birds did not hatch

D

Birds stopped laying eggs

Text Solution

Verified by Experts

The correct Answer is:
C
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CENGAGE BIOLOGY-ECOSYSTEM-ARCHIVES (CHOOSE THE CORRECT OPTION)
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  2. Identify the possible link ''A'' in the following food chain : Plant r...

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  3. In an area where DDT had been used extensively, the population of bird...

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  4. The upright pyramid of number is absent in:

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

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  6. Which is not a functional unit of an ecosystem ?

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

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  8. Pheretima and its close relatives derive nourishment from

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  9. Identify the likely organisms (a), (b), (c) and (d) in the food web sh...

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  10. The rate of formation of new organic matter by rabbit in a grassland, ...

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  11. Secondary productivity is rate of formation of new organic matter by:

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  12. Which one of the following processes during decomposition is correctly...

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  13. Natural reservoir of phosphorus is:

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  14. Macth the following and select the correct option. (a) Earthworm (...

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

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  16. Secondary/Succession takes place on/in :

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  17. In an ecosystem the rate of production of organic matter during photos...

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

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

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

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