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(C) Darwin observed that the finches on the Galapagos Islands had different types of beaks, which were adapted to their specific feeding habits (e.g.,

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Natural selection based on food habits

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(C) Darwin observed that the finches on the Galapagos Islands had different types of beaks, which were adapted to their specific feeding habits (e.g., seed-eating, insect-eating). He concluded that these variations were a result of $Adaptive 	ext{ } Radiation$, where a common ancestor diversified into different forms to exploit different ecological niches. This process is driven by $Natural 	ext{ } Selection$, where individuals with beak shapes best suited for their specific food sources survived and reproduced more successfully. Therefore, the variations in beak structure are a direct consequence of natural selection based on their food habits.

What did Darwin conclude after observing the variations in the beaks of birds on the Galapagos Islands?

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