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Answer :
Final answer:
Big-beaked finches and small-beaked finches in the Galápagos generally do not interbreed due to differences in mating behavior, a concept known as behavioral isolation. This preference for similar beak sizes is an example of how speciation can occur. Option d
Explanation:
The concept described in the student's question revolves around behavioral isolation, which is a form of reproductive isolation that occurs when two populations develop differences in courtship rituals or other behaviors that prevent them from breeding with each other.
The Galápagos finches, as studied by Peter and Rosemary Grant, are an excellent example of how behavioral isolation can lead to speciation.
In the case of the Galápagos finches, big-beaked finches tended to mate with other big-beaked finches, while small-beaked finches mated with small-beaked ones. This preference is a behavioral adaptation based on the utility of their beak sizes which affects their survival, especially during periods of drought when food sources were limited.
Over time, this preference can lead to reproductive isolation, ultimately causing the two groups to diverge into different species. Therefore, the correct answer to the student's question is d) Generally isolated, meaning that the big-beaked finches and small-beaked finches on the same island generally do not interbreed due to their mating preferences. Option d
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Final answer:
Big-beaked finches and small-beaked finches in the Galápagos generally do not interbreed due to differences in mating behavior, a concept known as behavioral isolation. This preference for similar beak sizes is an example of how speciation can occur. Option d
Explanation:
The concept described in the student's question revolves around behavioral isolation, which is a form of reproductive isolation that occurs when two populations develop differences in courtship rituals or other behaviors that prevent them from breeding with each other.
The Galápagos finches, as studied by Peter and Rosemary Grant, are an excellent example of how behavioral isolation can lead to speciation.
In the case of the Galápagos finches, big-beaked finches tended to mate with other big-beaked finches, while small-beaked finches mated with small-beaked ones. This preference is a behavioral adaptation based on the utility of their beak sizes which affects their survival, especially during periods of drought when food sources were limited.
Over time, this preference can lead to reproductive isolation, ultimately causing the two groups to diverge into different species. Therefore, the correct answer to the student's question is d) Generally isolated, meaning that the big-beaked finches and small-beaked finches on the same island generally do not interbreed due to their mating preferences. Option d
