Scientists hypothesized that several species of frogs called tiger frogs evolved from a recent common ancestor. The hypothesis was based on fossil evidence and on physical similarities among living species. Which of the following
provides the best additional support for the scientists' hypothesis?
Tiger frogs live near each other and are all preyed upon by the same predator species.
Tiger frogs have similarities in their mitochondrial DNA that are not shared by other frog species.
Tiger frogs have the same diet and all use enzymes to digest food.
Tiger frogs have longer life spans than other frog species.