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Question
Darwins finches are a group of about twelve species of birds that live on the Galapagos Islands. They have different size beaks. Which of the condition occurs by the birds of different size beaks?
Darwins finches are a group of about twelve species of birds that live on the Galapagos Islands. They have different size beaks. Which of the condition occurs by the birds of different size beaks?
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Solution
The correct option is C Competition
Competition is a process wherein different organisms of same or different species compete for scarce resources and the one having better behavioural/morphological/structural/anatomical traits exhibit better chances of survival. Darwin's finches with different beak size compete for limited available food and the one having most adapted beak is at the benefit. Genetic drift changes in gene frequency in successive generation of a small population due to chance alone while coevolution occurs in mutually beneficial organisms. Change in beak size is the strctural modification, not behavioural. Thus, the correct answer is option C.
Competition is a process wherein different organisms of same or different species compete for scarce resources and the one having better behavioural/morphological/structural/anatomical traits exhibit better chances of survival. Darwin's finches with different beak size compete for limited available food and the one having most adapted beak is at the benefit. Genetic drift changes in gene frequency in successive generation of a small population due to chance alone while coevolution occurs in mutually beneficial organisms. Change in beak size is the strctural modification, not behavioural. Thus, the correct answer is option C.
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