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According to Darwin during the struggle ...

According to Darwin during the struggle for existence, these organisms alone will survive

A

Organisms with discontinuous variations

B

Organisms with acquired variations

C

Organisms with useless variations

D

Organisms with beneficial variations

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The correct Answer is:
D
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AAKASH SERIES-EVOLUTION-EXERCISE - I (BIOLOGICAL EVOLUTION ( THEORIES OF EVOLUTION & MECHANISM OF EVOLUTION))
  1. Lamarck cited the example of giraffe to explain

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  2. In organisms vestigial organs are formed because of

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  3. According to Darwin during the struggle for existence, these organisms...

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  4. A sudden, random, discontinuous and heritable change is

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  5. Hugo de Vries stressed on

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  6. New species arise by sudden jump according to

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  7. There are no intermediate stages in the course of evolution according ...

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  8. According to Darwin, if new variations are to be inherited they should...

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  9. de Vries gave his mutation theory on organic cvolution while working o...

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  10. The most likely reason for the developoment of resistance against pe...

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  11. Which one of the following scientist's name is correctly matched with ...

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  12. Which of the following evidences does not favour the Lmarckian concept...

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  13. The diversity in the ty of veaks of finches adapted to differenn feedi...

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  14. Drawinism explains all the following except

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  15. Given below are four statements (A-D) each with one or two blanks. Sel...

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  16. Single step large mutation leading to speciation is also called

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  17. By the statement 'survival of the fittest', Darwin meant that

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  18. Which of the following are the two key concepts of Darwinian theory of...

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  19. According to Lamrckicm, long necked giraffes evolved because

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  20. Each of us is part of the ongoing evolution of the species. Which of t...

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