answer

Read this passage about two inherited traits in garter snakes. Garter snakes eat slugs, fish, and other small animals. Some snakes eat certain types of prey more often than other types. The prey preference trait determines what type of prey a garter snake usually eats. For example, a snake with a slug preference will eat mostly slugs, but a snake with a fish preference will eat mostly fish. Garter snakes are less likely to hunt prey that they do not have a preference for. So if a snake cannot find the type of prey it has a preference for, the snake will be less likely to get food. a garter snake The graph below describes prey preference in an isolated population of garter snakes at the start and end of a time period long enough for natural selection to occur. At the start of this time period, the garter snakes' environment changed. 100% B Snakes with a slug preference 75% @ Snakes with a fish preference 20% Percentage 25% 0% Population Population at start at end Describe how the garter snake population changed over this time period. Use the theory of natural selection to construct a possible explanation for this change. The percentage of snakes with a fish preference * in the population. This suggests that snakes with a fish preference were * likely to survive and reproduce than snakes with a slug preference. This may have occurred because there were significantly * fish after the population's environment changed. So snakes with a fish preference were * likely to get enough food