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Which question would BEST help determine whether the change in beak size and shape of these finches was influenced by natural selection?

A. Is the beak shape of male finches similar to that of female finches, and which bird has a longer body length?

B. What is the relationship between feather color and beak shape of finches?

C. How does the beak shape of finches change from generation to generation in response to food sources?

D. Did the ancestral finch have a larger wingspan than living finches?

Answer :

Final answer:

The best question to determine if changes in beak size and shape of finches were influenced by natural selection is how beak shape varies across generations due to food sources. This inquiry connects evolution and adaptation directly to environmental factors. Such changes reflect the principles of natural selection, where advantageous traits become more prevalent over time.


Explanation:

Understanding Beak Size and Shape in Finches


To determine whether the change in beak size and shape of finches, such as the Large Ground Finch and Genovesa Cactus Finch, was influenced by natural selection, the best question to ask is: How does the beak shape of finches change from generation to generation in response to food sources? This question directly addresses the concept of natural selection, which posits that variations that enhance survival and reproduction become more common in a population over time.


In the case of finches, variations in beak shape and size are often adaptations to different food sources. For example, finches that feed on hard seeds may have developed larger, stronger beaks to crack those seeds, while those that consume softer foods might have smaller, more delicate beaks. Observing how these beak shapes change with available food resources can illustrate the process of natural selection in action.


Other Questions Considered



  • The question about the similarity of beak shape between male and female finches may provide insights into sexual selection but is less relevant to understanding evolutionary changes in response to environmental factors.

  • The relationship between feather color and beak shape is generally independent of natural selection on beak size, as it may relate more to aesthetic functions or camouflage.

  • Determining whether the ancestral finch had a larger wingspan does not directly correlate to the evolutionary changes in beak size and shape.


Thus, focusing on how beak shapes adapt to food availability offers the most pertinent insights into the influence of natural selection on these finches.


Learn more about natural selection here:

https://brainly.com/question/50992476


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