Classify the following examples based on what type of natural selection they describe. A new flu vaccine is needed every year cause the flu virus evolves resistance our immune system cells created by the old vaccine Many antibiotics are no longer effective against bacteria because the bacteria have evolved resistance against them. Individuals in one population of finches occupy different niches and eventually evolve to have different beak sizes. Very large and very small newboms are more likely to suffer serious health problems. British land snails comprise two very different phenotypes, as they are both adapted to different habitats. Bird clutch sizes consisting of 4-5 eggs are more likely to hatch than larger or smaller clutches. Directional Selection Disruptive Selection Stabilizing Selection