Babies with very low or very high birth weight are less likely to survive. The graph shows the percentage of babies born at different weights. Which statement is a valid claim that could be made using the data in the graph? directional selection is occurring because the graph favors an extreme. Stabilizing selection is occurring because the average is favored. Disruptive selection is occurring because the two extremes are favored. Biodiversity variation is occurring because there is an increase in trait variation.