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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

birds stopped laying eggs

B

earthworms in the area got eradicated

C

cobras were feeding exclusively on birds

D

many of the birds eggs laid, did not hatch

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The correct Answer is:
D
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TRUEMAN BIOLOGY-EVOLUTION-MULTIPLE CHOICE QUESTIONS
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  2. Sudden change in the genome of an organism is

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

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  4. Which one of the following is a wrong statement?

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  5. Evolution of different species in a given area starting from a point a...

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  6. What was the most significant trend in the evolution of modern man (Ho...

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  7. The idea of mutations was brought forth by

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  8. Read the following statements and choose the correct option A. Incre...

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  9. Match column I with column II and select the correct option from the g...

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  10. Which one of these was a flying dinosaur

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  11. Sickle-cell anaemia is caused due to the substitution of :

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  12. Which of the following corresponds to mutagens

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  13. The idea of mutation was brought forth by

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  14. Which of the following is a vestigial structure in man ?

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  15. Which of the following statements is incorrect?

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  16. According of Darwin, the organic evolution is due to

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  17. The tendency of population to remain in genetic equilibrium may be dis...

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  18. Variation in gene frequencies within populations can occur by chance r...

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  19. The process by which organisms with different evolutionary history evo...

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