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Answer :
Final answer:
After the drought on Daphne Major subsided and food became more varied, finches with smaller beaks would likely have a survival advantage, leading to a decrease in average beak depth in the subsequent generation due to natural selection.
Explanation:
Following the drought on Daphne Major, the average beak depth in finches is likely to have decreased in the next generation. The explanation for this lies in the concept of natural selection. During the drought, finches with deep beaks had an advantage because they could crack open large seeds, leading to these birds surviving and reproducing. However, once the drought ended and the food supply became more abundant and varied, including more small seeds, the disadvantage of needing more food and the lower juvenile survival rates for finches with deep beaks could have led to a higher mortality in these birds or less reproductive success. Consequently, the breeding pool would have a larger proportion of finches with shallow beaks.
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Final answer:
After the drought on Daphne Major, the average beak depth of the next generation of finches is likely to have increased.
Explanation:
The average beak depth of the next generation of finches on Daphne Major is likely to have increased after the drought subsided. This is because during the drought, there were fewer seeds available for the finches to eat, and birds with bigger beaks had an advantage in cracking and eating seeds of all sizes. As a result, many small-beaked finches died, while those with bigger beaks survived and reproduced. This led to the evolution of larger beak sizes in the finch population.
