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Read this passage about two inherited traits in P. aeruginosa bacteria. Pseudomonas aeruginosa (P. aeruginosa) is a common species of bacteria that is found in water, soil, and even the human body! Each P. aeruginosa bacterium has one or more flagella that it uses to move through its enviranment. P, aeruginosa bacteria with one flagellum usually attach themselves to a surface, where they form a large conmected group called a biofilm. This behavior allows the bacteria to stay in a place with an abundant food source, but these bacteria cannot mave to find other food sources. P, aeruginosa with many flagella move quickly over surfaces. pee ree peme This behavior, called hyperswarming, is useful for searching fapellurn large areas to find scarce, scattered food sources. But these bacteria cannot easily form biofilms, so they cannot securely attach themselves to a place that has an abundant food SOUrCE. The graphs below describe flagellum number in an isolated population of PF. aeruginosa bacteria at the start and end of a time period Jong nough for natural selection to occur. At the start of this time period, the P. aeruginosa bacteria's environment changed. Population at start Population at end 90% Bacteria with one flagellum Bacteria with many flagella Describe how the -. aeruginosa population changed over this time period, Use the theory of natural selection to comstruct a possible explanation for this change. The percentage of bacteria with one flagellum * in the population. This suggests that bacteria with one flagellum were * likely to survive and reproduce than bacteria with many flagella. This may have occurred because food was * after the population's environment changed. So bacteria with many flagella were * likely than those with one flagellum to get enough food