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)
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Birds with short legs were selected for.
Birds with long legs and birds with short legs were selected for.
Birds with medium-length legs were selected for.
Birds with long legs were selected for.