Suppose that because of a sudden change in the environment, finches with long thin beaks become better at securing food than finches with other types of beaks. Assuming that the characteristics of beaks have a genetic component, we would expect that
A) future environments for these finches will remain about the same.
B) natural selection will favour the long, thin beaked genotype.
C) finches with other beak genotypes will become extinct.
D) the number of finches with long, thin beaks will stay about the same.
E) finches with shorter beaks will find new environments to feed in.

Question

Quizplus · Accepted Answer

Natural selection will favor the long, thin beaked genotype because these finches are better adapted to secure food in the changed environment, leading to a higher survival and reproduction rate for these individuals.

Suppose That Because of a Sudden Change in the Environment