Researchers plotted a distribution curve for leg length in a population of birds, with length from short to long on the x-axis. The curve shifts to the right after a disturbance. Which statement is correct about natural selection in this population of birds?(1 point)

Question

Responses

Birds with medium-length legs were selected for.
Birds with medium-length legs were selected for.

Birds with long legs and birds with short legs were selected for.
Birds with long legs and birds with short legs were selected for.

Birds with long legs were selected for.
Birds with long legs were selected for.

Birds with short legs were selected for.

Answer 1

When a distribution curve shifts to the right, it indicates that the average leg length in the population has increased, suggesting that longer leg lengths are becoming more common. This scenario typically means that the environmental pressures after the disturbance favored birds with longer legs. Therefore, the correct statement about natural selection in this population of birds is:

Birds with long legs were selected for.