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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

1)birds stopped laying eggs

B

2)earthworms in the area got eradicated

C

3)cobras were feeding exclusively on birds

D

4)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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  12. Which of the following corresponds to mutagens 1. Chemicals and radia...

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

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