Q133 / 160 · JIPMER 2011 · Zoology

The diversity in the type of beaks of finches adapted to different feeding habits on the Galapagos islands, as observed by Darwin, provides evidence for

  • Correct answer
    A
    origin of species by natural selection
  • B
    intraspecific variations
  • C
    intraspecific competition
  • D
    interspecific competition

Solution

Birds of Galapagos islands (Darwin's finches) are believed to have evolved from ancestors on the South American mainland as a result of natural selection due to different feeding niches available to them.

Hence, the correct answer is option: 'A'.

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