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Which of the following statements about ...

Which of the following statements about natural selection are correct?
( i) Tends to increase the characters that enhance survival and reproduction
(ii) Causes adaptation
(iii) Acts on an organism's phenotype
(iv) Was considered as mechanism of evolution by Darwin

A

(i), (ii), (iii) and (iv)

B

(i) and (ii)

C

(iii) and (iv)

D

(i), (iii) and (iv)

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The correct Answer is:
A
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AAKASH SERIES-EVOLUTION-EXERCISE - I (BIOLOGICAL EVOLUTION ( THEORIES OF EVOLUTION & MECHANISM OF EVOLUTION))
  1. New species arise by sudden jump according to

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

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

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

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

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

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

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

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  9. Drawinism explains all the following except

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

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

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

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

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  14. According to Lamrckicm, long necked giraffes evolved because

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

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  16. Which of the following statements about natural selection are correct?...

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  17. Replacement of the lighter-coloured variety of peppered moth (Biston b...

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  18. Appearance of antibiotic-sistant bacteria is an example of

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  19. Which of the following is an example for link species?

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  20. Variations during mutations of meiotic recombinations are

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