Question
There are 13 species of Darwin's finches on the Galápagos Islands. They have many similar features but differ in beak size and shape. Which explanation accounts of these characteristics?
a. finch species have similar diets.
b. all finch species evolved from a common ancestor.
c. each finch species evolved from a different ancestor.
d. finch species interbreed.
a. finch species have similar diets.
b. all finch species evolved from a common ancestor.
c. each finch species evolved from a different ancestor.
d. finch species interbreed.
Answers
GPT-4o mini
The explanation that accounts for the similarities and differences in beak size and shape among Darwin's finches is:
**b. all finch species evolved from a common ancestor.**
This is because the variation in beak size and shape among the finch species is a result of adaptive evolution, where different beak forms have evolved to suit the specific dietary needs and environmental conditions of each finch species. The shared ancestry indicates that these finches diversified over time, adapting to different ecological niches.
**b. all finch species evolved from a common ancestor.**
This is because the variation in beak size and shape among the finch species is a result of adaptive evolution, where different beak forms have evolved to suit the specific dietary needs and environmental conditions of each finch species. The shared ancestry indicates that these finches diversified over time, adapting to different ecological niches.