The diagram shows the changes in foot structure in a bird population over many generations
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How can these changes best be explained?
a
use and disuse
b
stable gene frequencies
c
evolution
d
extinction
c evolution
The changes in foot structure in the bird population over many generations can best be explained by the process of evolution. Evolution is the change in the heritable characteristics of biological populations over successive generations. In this case, the changes in foot structure likely occurred as a result of natural selection favoring birds with certain foot structures that were advantageous for their survival and reproduction in their environment. Over time, these advantageous traits became more common in the population through the process of evolution.