Birds with long legs were selected for.
When the distribution curve shifts to the right after a disturbance, it means that there is a shift towards individuals with longer legs. This indicates that birds with longer legs were better adapted to the new environment created by the disturbance and had a higher probability of survival and reproduction. Therefore, over time, the frequency of the genes that code for long legs would increase in the population, resulting in the observed right shift in the distribution curve.
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?
• Birds with medium-length legs were selected for.
• Birds with short legs were selected for.
• Birds with long legs were selected for.
• Birds with long legs and birds with short legs were selected for.
1 answer